CVE-2024-56581

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-12-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week

Also known asEUVD-2024-53229 (ENISA EUVD) · GHSA-9xj5-r9g9-xvp9 (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

btrfs: ref-verify: fix use-after-free after invalid ref action

At btrfs_ref_tree_mod() after we successfully inserted the new ref entry (local variable 'ref') into the respective block entry's rbtree (local variable 'be'), if we find an unexpected action of BTRFS_DROP_DELAYED_REF, we error out and free the ref entry without removing it from the block entry's rbtree. Then in the error path of btrfs_ref_tree_mod() we call btrfs_free_ref_cache(), which iterates over all block entries and then calls free_block_entry() for each one, and there we will trigger a use-after-free when we are called against the block entry to which we added the freed ref entry to its rbtree, since the rbtree still points to the block entry, as we didn't remove it from the rbtree before freeing it in the error path at btrfs_ref_tree_mod(). Fix this by removing the new ref entry from the rbtree before freeing it.

Syzbot report this with the following stack traces:

BTRFS error (device loop0 state EA): Ref action 2, root 5, ref_root 0, parent 8564736, owner 0, offset 0, num_refs 18446744073709551615 __btrfs_mod_ref+0x7dd/0xac0 fs/btrfs/extent-tree.c:2523 update_ref_for_cow+0x9cd/0x11f0 fs/btrfs/ctree.c:512 btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594 btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754 btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116 btrfs_insert_empty_items+0x9c/0x1a0 fs/btrfs/ctree.c:4314 btrfs_insert_empty_item fs/btrfs/ctree.h:669 [inline] btrfs_insert_orphan_item+0x1f1/0x320 fs/btrfs/orphan.c:23 btrfs_orphan_add+0x6d/0x1a0 fs/btrfs/inode.c:3482 btrfs_unlink+0x267/0x350 fs/btrfs/inode.c:4293 vfs_unlink+0x365/0x650 fs/namei.c:4469 do_unlinkat+0x4ae/0x830 fs/namei.c:4533 __do_sys_unlinkat fs/namei.c:4576 [inline] __se_sys_unlinkat fs/namei.c:4569 [inline] __x64_sys_unlinkat+0xcc/0xf0 fs/namei.c:4569 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f BTRFS error (device loop0 state EA): Ref action 1, root 5, ref_root 5, parent 0, owner 260, offset 0, num_refs 1 __btrfs_mod_ref+0x76b/0xac0 fs/btrfs/extent-tree.c:2521 update_ref_for_cow+0x96a/0x11f0 btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594 btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754 btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116 btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:411 __btrfs_update_delayed_inode+0x1e7/0xb90 fs/btrfs/delayed-inode.c:1030 btrfs_update_delayed_inode fs/btrfs/delayed-inode.c:1114 [inline] __btrfs_commit_inode_delayed_items+0x2318/0x24a0 fs/btrfs/delayed-inode.c:1137 __btrfs_run_delayed_items+0x213/0x490 fs/btrfs/delayed-inode.c:1171 btrfs_commit_transaction+0x8a8/0x3740 fs/btrfs/transaction.c:2313 prepare_to_relocate+0x3c4/0x4c0 fs/btrfs/relocation.c:3586 relocate_block_group+0x16c/0xd40 fs/btrfs/relocation.c:3611 btrfs_relocate_block_group+0x77d/0xd90 fs/btrfs/relocation.c:4081 btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3377 __btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4161 btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4538 BTRFS error (device loop0 state EA): Ref action 2, root 5, ref_root 0, parent 8564736, owner 0, offset 0, num_refs 18446744073709551615 __btrfs_mod_ref+0x7dd/0xac0 fs/btrfs/extent-tree.c:2523 update_ref_for_cow+0x9cd/0x11f0 fs/btrfs/ctree.c:512 btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594 btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754 btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116 btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:411 __btrfs_update_delayed_inode+0x1e7/0xb90 fs/btrfs/delayed-inode.c:1030 btrfs_update_delayed_i ---truncated---

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
14th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 27, 2024

Last Modified

August 5, 2026

Advisory Details (9)

Auto-updated Aug 4, 2026
Patch available.
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4075-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4076-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
Web page

btrfs: ref-verify: fix use-after-free after invalid ref action - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dfb9fe7de61f34cc241ab3900bdde93341096e0e
Web page

btrfs: ref-verify: fix use-after-free after invalid ref action - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d2b85ce0561fde894e28fa01bd5d32820d585006
Web page

btrfs: ref-verify: fix use-after-free after invalid ref action - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a6f9e7a0bf1185c9070c0de03bb85eafb9abd650
Web page

btrfs: ref-verify: fix use-after-free after invalid ref action - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7c4e39f9d2af4abaf82ca0e315d1fd340456620f
Web page

btrfs: ref-verify: fix use-after-free after invalid ref action - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6fd018aa168e472ce35be32296d109db6adb87ea
Web page

btrfs: ref-verify: fix use-after-free after invalid ref action - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6370db28af9a8ae3bbdfe97f8a48f8f995e144cf
Web page

btrfs: ref-verify: fix use-after-free after invalid ref action - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4275ac2741941c9c7c2293619fdbacb9f70ba85b

Vendor Advisories for CVE-2024-56581(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(31)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-oem-24.04b (6.11.0-1017.17) @ noble2026-10-27ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1044.48) @ jammy2026-10-27ubuntu
ubuntulinux-tools-gcp-fips (5.15.0.1079.69) @ jammy2026-10-27ubuntu
ubuntulinux-tools-raspi (6.11.0-1010.10) @ oracular2026-10-27ubuntu
ubuntulinux-tools-ibm-edge (5.4.0.1090.95~18.04.1) @ bionic2026-10-27ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1077.83~20.04.1) @ focal2026-10-27ubuntu
ubuntulinux-tools-realtime-hwe-24.04 (6.8.1-1020.21) @ noble2026-10-27ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.211.206) @ focal2026-10-27ubuntu
ubuntulinux-tools-oracle-edge (5.4.0.1140.149~18.04.1) @ bionic2026-10-27ubuntu
ubuntulinux-tools-gcp-fips (5.4.0.1145.87) @ focal2026-10-27ubuntu
ubuntulinux-tools-aws-fips (5.4.0.1142.89) @ focal2026-10-27ubuntu
ubuntulinux-tools-aws-lts-20.04 (5.4.0.1142.139) @ focal2026-10-27ubuntu
ubuntulinux-tools-aws-edge (5.4.0.1142.152~18.04.1) @ bionic2026-10-27ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.136.147~20.04.1) @ focal2026-10-27ubuntu
ubuntulinux-tools-iot (5.4.0.1048.46) @ focal2026-10-27ubuntu
ubuntulinux-tools-azure-fde-edge (5.15.0.1086.95~20.04.1.61) @ focal2026-10-27ubuntu
ubuntulinux-virtual (6.8.0-58.60) @ noble2026-10-27ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1028.30~22.04.1) @ jammy2026-10-27ubuntu
ubuntulowlatency-4.15 (4.15.0-143) @ xenial2026-10-27ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.247.259~16.04.1) @ xenial2026-10-27ubuntu
ubuntulinux-tools-lowlatency-hwe-24.04-edge (6.11.0-1011.12~24.04.1) @ noble2026-10-27ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-58.60~22.04.1) @ jammy2026-10-27ubuntu
ubuntulinux-tools-lowlatency-64k (6.11.0-1011.12) @ oracular2026-10-27ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.135.133) @ jammy2026-10-27ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-21.21) @ oracular2026-10-27ubuntu
ubuntulinux-tools-realtime (5.15.0.1080.83) @ jammy2026-10-27ubuntu
ubuntulinux-tools-fips (5.4.0.1116.113) @ focal2026-10-27ubuntu
ubuntulinux-tools-kvm (5.15.0.1076.72) @ jammy2026-10-27ubuntu
ubuntulinux-tools-nvidia-tegra-rt (5.15.0.1033.33) @ jammy2026-10-27ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1081.90~20.04.1) @ focal2026-10-27ubuntu
linuxKernel @ 5.4.287 (fixes >=4.15.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (44 versions)
  • every version up to 5.10.234-1: fixed in 5.10.234-1
—
linux-6.16.1.106-3~deb11u1, 6.1.106-3~deb11u2, 6.1.106-3~deb11u3, 6.1.112-1~deb11u1, 6.1.119-1~deb11u1
  • every version up to 6.1.128-1~deb11u1: fixed in 6.1.128-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (32 versions)
  • every version up to 6.1.123-1: fixed in 6.1.123-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.5-1: fixed in 6.12.5-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.5-1: fixed in 6.12.5-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 41× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 95 of 219 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 124 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  3. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  4. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  5. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  6. 2026-10-27 19:53 UTCEG score recompute
  7. 2026-10-27 19:53 UTCVendor advisory
  8. 2026-10-27 19:52 UTCGHSA enrichmentGHSA-9xj5-r9g9-xvp9 · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-10-25 16:55 UTCEG score recompute
  12. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  13. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-10-19 15:23 UTCEG score recompute
  20. 2026-10-19 15:23 UTCVendor advisory
  21. 2026-10-19 15:23 UTCGHSA enrichmentGHSA-9xj5-r9g9-xvp9 · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-10-18 05:58 UTCEG score recompute
  24. 2026-10-17 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.2% · 13th percentile
Show 70 more
  1. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-12 17:37 UTCEG score recompute
  5. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-11 21:03 UTCEG score recompute
  7. 2026-10-11 15:55 UTCEG score recompute
  8. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-10-02 16:24 UTCEG score recompute
  18. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  21. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-09-26 22:42 UTCOSV refresh
  23. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  26. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  27. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  28. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  29. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  30. 2026-09-16 05:12 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  31. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  32. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  33. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  34. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  35. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  36. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  37. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  38. 2026-09-07 08:18 UTCOSV refresh
  39. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  40. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  41. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  42. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  43. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  44. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  45. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  46. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  47. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  48. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  49. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  50. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  51. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  52. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  53. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  54. 2026-08-20 18:01 UTCOSV refresh
  55. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  56. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  57. 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  58. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  59. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  60. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  61. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  62. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  63. 2026-08-11 13:41 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  64. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  65. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  66. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  67. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  68. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  69. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  70. 2026-08-05 11:49 UTCEG score recompute

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Frequently asked(5)

What is CVE-2024-56581?
CVE-2024-56581 is a high-severity vulnerability; its CVE record was published on December 27, 2024. In the Linux kernel, the following vulnerability has been resolved: btrfs: ref-verify: fix use-after-free after invalid ref action At btrfs_ref_tree_mod() after we successfully inserted the new ref entry (local variable 'ref') into the respective block entry's rbtree (local variable 'be'), if we…
When was the CVE record for CVE-2024-56581 published?
The CVE record for CVE-2024-56581 was published on December 27, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 5, 2026; the record at its source may have been updated since.
Is CVE-2024-56581 actively exploited?
CVE-2024-56581 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-56581?
CVE-2024-56581 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-56581?
A fix for CVE-2024-56581 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-56581 are linked in the Vendor Advisories panel on this page.

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