CVE-2024-40981

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 2024-07-12. 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-2024-38776 (ENISA EUVD) · GHSA-66mx-vw67-wmq9 (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:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621] Modules linked in: irq event stamp: 6182794 hardirqs last enabled at (6182793): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (6182792): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (6182792): [] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271 CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Workqueue: bat_events batadv_purge_orig pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 sp : ffff800099007970 x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000 x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001 x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4 x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0 x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001 x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000 Call trace: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline] __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300 process_one_work+0x694/0x1204 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103 sp : ffff800093a17d30 x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4 x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002 x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000 x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396 x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001 ---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
13th
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. 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

July 12, 2024

Last Modified

November 3, 2025

References (9)

Patch Availability(26)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1013.14~22.04.1) @ jammy2026-10-24ubuntu
ubuntulinux-tools-azure (6.8.0-1014.16) @ noble2026-10-24ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-44.44.1~22.04.1) @ jammy2026-10-24ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1072.70) @ jammy2026-10-24ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-45.45~22.04.1) @ jammy2026-10-24ubuntu
ubuntulinux-tools-azure-fde-edge (5.15.0.1072.81~20.04.1.49) @ focal2026-10-24ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1035.39) @ jammy2026-10-24ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1116.146) @ focal2026-10-24ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1067.73~20.04.1) @ focal2026-10-24ubuntu
ubuntulinux-tools-raspi-hwe-18.04-edge (5.4.0.1116.128~18.04.1) @ bionic2026-10-24ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.195.215~18.04.1) @ bionic2026-10-24ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.8.0-44.44) @ noble2026-10-24ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.195.193) @ focal2026-10-24ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k (6.8.0-1013.14.1) @ noble2026-10-24ubuntu
ubuntulinux-tools-iot (5.4.0.1043.41) @ focal2026-10-24ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1051 (5.4.0-1051.55) @ focal2026-10-24ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.266.272) @ xenial2026-10-24ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.121.121) @ jammy2026-10-24ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (5.15.0.121.131~20.04.1) @ focal2026-10-24ubuntu
ubuntulinux-tools-raspi (6.8.0-1011.12) @ noble2026-10-24ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.235.247~16.04.1) @ xenial2026-10-24ubuntu
ubuntulinux-tools-kvm (4.4.0.1142.139) @ xenial2026-10-24ubuntu
ubuntulinux-tools-oracle (4.15.0.1140.151~16.04.1) @ xenial2026-10-24ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.266.300~14.04.1) @ trusty2026-10-24ubuntu
ubuntulinux-tools-azure-edge (4.15.0.1186.201~16.04.1) @ xenial2026-10-24ubuntu
linuxKernel @ 4.19.317 (fixes >=2.6.39)—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 (41 versions)
  • every version up to 5.10.221-1: fixed in 5.10.221-1
—
linux-6.16.1.106-3~deb11u1, 6.1.106-3~deb11u2, 6.1.106-3~deb11u3, 6.1.112-1~deb11u1
  • every version up to 6.1.119-1~deb11u1: fixed in 6.1.119-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.27-1 ... 6.1.98-1 (25 versions)
  • every version up to 6.1.99-1: fixed in 6.1.99-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.9.7-1: fixed in 6.9.7-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.9.7-1: fixed in 6.9.7-1
—

Weakness Classification(1)

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

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 39× 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 96 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. 4 repeat rows among the latest 100 are merged into the row they repeat. The 106 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-11-01 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-29 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-28 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-27 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-10-25 17:05 UTCEG score recompute
  10. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-24 05:34 UTCEG score recompute
  13. 2026-10-24 05:34 UTCVendor advisory
  14. 2026-10-24 05:34 UTCGHSA enrichmentGHSA-66mx-vw67-wmq9 · GitHub CVSS 5.5
  15. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-10-18 07:07 UTCEG score recompute
  22. 2026-10-17 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
Show 71 more
  1. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-12 17:48 UTCEG score recompute
  3. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-11 21:13 UTCEG score recompute
  5. 2026-10-11 16:06 UTCEG score recompute
  6. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-10-10 14:03 UTCOSV refresh
  9. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  10. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-09-30 19:50 UTCEG score recompute
  18. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  22. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  25. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  26. 2026-09-21 20:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  27. 2026-09-20 23:27 UTCOSV refresh
  28. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  29. 2026-09-19 15:40 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  30. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  31. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  32. 2026-09-16 05:12 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  33. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  34. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  37. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  39. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  40. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  41. 2026-09-05 15:27 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  42. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  44. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  45. 2026-09-01 23:15 UTCOSV refresh
  46. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  47. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  48. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  49. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  50. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  51. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  52. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  53. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  54. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  55. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  56. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  57. 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  58. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  59. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  60. 2026-08-16 01:07 UTCOSV refresh
  61. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  62. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  63. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  64. 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  65. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  66. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  67. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  68. 2026-08-07 16:25 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  69. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  70. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  71. 2026-08-04 15:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-40981?
CVE-2024-40981 is a medium-severity vulnerability; its CVE record was published on July 12, 2024. In the Linux kernel, the following vulnerability has been resolved: batman-adv: bypass empty buckets in batadv_purge_orig_ref() Many syzbot reports are pointing to soft lockups in batadv_purge_orig_ref() [1] Root cause is unknown, but we can avoid spending too much time there and perhaps get more…
When was the CVE record for CVE-2024-40981 published?
The CVE record for CVE-2024-40981 was published on July 12, 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 November 3, 2025; the record at its source may have been updated since.
Is CVE-2024-40981 actively exploited?
CVE-2024-40981 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-40981?
CVE-2024-40981 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2024-40981?
A fix for CVE-2024-40981 is available: update to the fixed version the vendor names in its advisory.

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