CVE-2024-26805

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

Score 5.5 from GitHub Security Advisory published 2024-04-04. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2024-24067 (ENISA EUVD) · GHSA-7xpv-78qx-q843 (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter

syzbot reported the following uninit-value access issue [1]:

netlink_to_full_skb() creates a new skb and puts the skb->data passed as a 1st arg of netlink_to_full_skb() onto new skb. The data size is specified as len and passed to skb_put_data(). This len is based on skb->end that is not data offset but buffer offset. The skb->end contains data and tailroom. Since the tailroom is not initialized when the new skb created, KMSAN detects uninitialized memory area when copying the data.

This patch resolved this issue by correct the len from skb->end to skb->len, which is the actual data offset.

BUG: KMSAN: kernel-infoleak-after-free in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak-after-free in copy_to_user_iter lib/iov_iter.c:24 [inline] BUG: KMSAN: kernel-infoleak-after-free in iterate_ubuf include/linux/iov_iter.h:29 [inline] BUG: KMSAN: kernel-infoleak-after-free in iterate_and_advance2 include/linux/iov_iter.h:245 [inline] BUG: KMSAN: kernel-infoleak-after-free in iterate_and_advance include/linux/iov_iter.h:271 [inline] BUG: KMSAN: kernel-infoleak-after-free in _copy_to_iter+0x364/0x2520 lib/iov_iter.c:186 instrument_copy_to_user include/linux/instrumented.h:114 [inline] copy_to_user_iter lib/iov_iter.c:24 [inline] iterate_ubuf include/linux/iov_iter.h:29 [inline] iterate_and_advance2 include/linux/iov_iter.h:245 [inline] iterate_and_advance include/linux/iov_iter.h:271 [inline] _copy_to_iter+0x364/0x2520 lib/iov_iter.c:186 copy_to_iter include/linux/uio.h:197 [inline] simple_copy_to_iter+0x68/0xa0 net/core/datagram.c:532 __skb_datagram_iter+0x123/0xdc0 net/core/datagram.c:420 skb_copy_datagram_iter+0x5c/0x200 net/core/datagram.c:546 skb_copy_datagram_msg include/linux/skbuff.h:3960 [inline] packet_recvmsg+0xd9c/0x2000 net/packet/af_packet.c:3482 sock_recvmsg_nosec net/socket.c:1044 [inline] sock_recvmsg net/socket.c:1066 [inline] sock_read_iter+0x467/0x580 net/socket.c:1136 call_read_iter include/linux/fs.h:2014 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x8f6/0xe00 fs/read_write.c:470 ksys_read+0x20f/0x4c0 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x93/0xd0 fs/read_write.c:621 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Uninit was stored to memory at: skb_put_data include/linux/skbuff.h:2622 [inline] netlink_to_full_skb net/netlink/af_netlink.c:181 [inline] __netlink_deliver_tap_skb net/netlink/af_netlink.c:298 [inline] __netlink_deliver_tap+0x5be/0xc90 net/netlink/af_netlink.c:325 netlink_deliver_tap net/netlink/af_netlink.c:338 [inline] netlink_deliver_tap_kernel net/netlink/af_netlink.c:347 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x10f1/0x1250 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x1238/0x13d0 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x490 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Uninit was created at: free_pages_prepare mm/page_alloc.c:1087 [inline] free_unref_page_prepare+0xb0/0xa40 mm/page_alloc.c:2347 free_unref_page_list+0xeb/0x1100 mm/page_alloc.c:2533 release_pages+0x23d3/0x2410 mm/swap.c:1042 free_pages_and_swap_cache+0xd9/0xf0 mm/swap_state.c:316 tlb_batch_pages ---truncated---

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
15th
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 (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-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 2026-10-25). 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 every mission impact level.CISA BOD 26-04: 60 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 every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

April 4, 2024

Last Modified

October 15, 2026

Vendor Advisories for CVE-2024-26805(1)

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

Patch Availability(18)

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

(6 across 5 ecosystems)
Debian:10(2)
PackageVulnerable rangeFix by version rangeDependents
linux4.19.118-1 ... 4.19.98-1~bpo9+1 (46 versions)
  • every version up to 4.19.316-1: fixed in 4.19.316-1
—
linux-5.105.10.136-1~deb10u1 ... 5.10.209-2~deb10u1 (13 versions)
  • every version up to 5.10.216-1~deb10u1: fixed in 5.10.216-1~deb10u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (39 versions)
  • every version up to 5.10.216-1: fixed in 5.10.216-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.27-1 ... 6.1.76-1~bpo11+1 (18 versions)
  • every version up to 6.1.82-1: fixed in 6.1.82-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.7.9-1: fixed in 6.7.9-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.7.9-1: fixed in 6.7.9-1
—

Weakness Classification(1)

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

All Vendor Advisories

(17)

Data Freshness Timeline

(refreshed 8× in last 7d / 37× 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 97 of 202 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 105 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:31 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  2. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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  7. 2026-10-27 15:55 UTCOSV refresh
  8. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  9. 2026-10-25 17:15 UTCEG score recompute
  10. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  11. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  12. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
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  15. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  16. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-10-18 07:22 UTCEG score recompute
  18. 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  21. 2026-10-15 01:21 UTCEG score recompute
  22. 2026-10-15 01:20 UTCGHSA enrichmentGHSA-7xpv-78qx-q843 · GitHub CVSS 5.5
  23. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  25. 2026-10-12 17:59 UTCEG score recompute
Show 72 more
  1. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-10-11 21:23 UTCEG score recompute
  3. 2026-10-11 16:17 UTCEG score recompute
  4. 2026-10-11 16:06 UTCOSV refresh
  5. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  6. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-10-08 17:07 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-09-30 16:59 UTCEG score recompute
  16. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  21. 2026-09-22 03:46 UTCOSV refresh
  22. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  23. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  24. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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  26. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  27. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  28. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  29. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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  35. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  36. 2026-09-03 01:29 UTCOSV refresh
  37. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  38. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  39. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  40. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  41. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  42. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  43. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  44. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  45. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  46. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  47. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  48. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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  50. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  51. 2026-08-16 14:30 UTCOSV refresh
  52. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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  54. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  55. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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  57. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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  64. 2026-08-01 08:06 UTCOSV refresh
  65. 2026-08-01 04:14 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  66. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.2% · 15th percentile
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Frequently asked(5)

What is CVE-2024-26805?
CVE-2024-26805 is a medium-severity vulnerability; its CVE record was published on April 4, 2024. In the Linux kernel, the following vulnerability has been resolved: netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter syzbot reported the following uninit-value access issue [1]: netlink_to_full_skb() creates a new skb and puts the skb->data passed as a 1st arg of netlink_to_full_skb()…
When was the CVE record for CVE-2024-26805 published?
The CVE record for CVE-2024-26805 was published on April 4, 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 October 15, 2026; the record at its source may have been updated since.
Is CVE-2024-26805 actively exploited?
CVE-2024-26805 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-26805?
CVE-2024-26805 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2024-26805?
A fix for CVE-2024-26805 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-26805 are linked in the Vendor Advisories panel on this page.

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