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CVE-2024-40910

17
FAUCET Score

CVE-2024-40910 is a Linux kernel vulnerability affecting the AX.25 networking subsystem. It stems from a refcount imbalance during inbound connection handling, where netdev_hold() is not called, leading to kernel crashes and potential infinite loops upon interface removal. Rated Medium (CVSS 5.5), this local vulnerability (AV:L) can cause high availability impact (A:H) due to system instability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.18, < 6.1.95CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.35CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.9.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*
6.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 80th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

codesyspatch availablevia llm_extracted
View patch
esphomepatch availablevia llm_extracted
View patch

Vendor Advisories (3)

codesysllm-codesys-fe85e88fbae25bb9CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
esphomellm-esphome-ed450ce9fd6a7380CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
redhatCVE-2024-40910Moderate

kernel: ax25: Fix refcount imbalance on inbound connections

Jul 12, 2024

References

git.kernel.org / stable/c/3c34fb0bd4a4237592c5ecb5b2e2531900c55774
Patch
git.kernel.org / stable/c/52100fd74ad07b53a4666feafff1cd11436362d3
Patch
git.kernel.org / stable/c/a723a6c8d4831cc8e2c7b0c9f3f0c010d4671964
Patch
git.kernel.org / stable/c/f4df9d6c8d4e4c818252b0419c2165d66eabd4eb
Patch
lists.debian.org / debian-lts-announce/2025/01/msg00001.html