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CVE-2024-38554

17
FAUCET Score

CVE-2024-38554 is a reference count leak vulnerability in the Linux kernel's AX.25 networking subsystem, specifically within the ax25_dev_device_down() function. This flaw can lead to a memory leak when an AX.25 device is shut down. With a CVSS score of 5.5 (Medium), it requires local access and low privileges to exploit, primarily impacting availability by potentially causing system instability or denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.17, < 6.1.93CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.33CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.8.12CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.9, < 6.9.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.14.277, < 4.15CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*

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
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
14.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 64th 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-2024-38554Low

kernel: ax25: Fix reference count leak issue of net_device

Jun 19, 2024

References

git.kernel.org / stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2
Patch
git.kernel.org / stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad
Patch
git.kernel.org / stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a
Patch
git.kernel.org / stable/c/965d940fb7414b310a22666503d2af69459c981b
Patch
git.kernel.org / stable/c/eef95df9b752699bddecefa851f64858247246e9
Patch