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CVE-2024-43867

17
FAUCET Score

CVE-2024-43867 is a refcount underflow vulnerability in the Linux kernel's Nouveau DRM driver, specifically affecting the nouveau_bo_ref() function when called on an uninitialized nouveau_bo. This flaw, rated Medium severity (CVSS 5.5), can lead to a denial of service (A:H) with local access (AV:L/PR:L) and low attack complexity (AC:L). There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.9, < 5.4.282CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.224CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.165CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.104CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.45CPE matchmatch criteria
cpe:2.3:o: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
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
12.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 54th 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-2024-43867Moderate

kernel: drm/nouveau: prime: fix refcount underflow

Aug 20, 2024

References

git.kernel.org / stable/c/16998763c62bb465ebc409d0373b9cdcef1a61a6
Patch
git.kernel.org / stable/c/2a1b327d57a8ac080977633a18999f032d7e9e3f
Patch
git.kernel.org / stable/c/3bcb8bba72ce89667fa863054956267c450c47ef
Patch
git.kernel.org / stable/c/906372e753c5027a1dc88743843b6aa2ad1aaecf
Patch
git.kernel.org / stable/c/a9bf3efc33f1fbf88787a277f7349459283c9b95
Patch
git.kernel.org / stable/c/ebebba4d357b6c67f96776a48ddbaf0060fa4c10
Patch
git.kernel.org / stable/c/f23cd66933fe76b84d8e282e5606b4d99068c320
Patch
lists.debian.org / debian-lts-announce/2024/10/msg00003.html
lists.debian.org / debian-lts-announce/2025/01/msg00001.html