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CVE-2024-38566

17
FAUCET Score

CVE-2024-38566 is a medium-severity vulnerability in the Linux kernel's BPF verifier, affecting the 'socket' structure. The flaw stems from an incorrect assumption that the 'sk' field within a valid 'socket' pointer is always non-NULL, which is not true for newly created sockets passed to the LSM socket_accept hook. This could lead to a high impact on integrity (I:H) with local access (AV:L) and low attack complexity (AC:L). Currently, there is no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.4, < 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:*:*:*:*:*:*:*:*

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:H/A:N

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

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.8%
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 56th 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 (4)

codesyspatch availablevia llm_extracted
View patch
esphomepatch availablevia llm_extracted
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

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-2024-38566Low

kernel: bpf: Fix verifier assumptions about socket-&gt;sk

Jun 19, 2024

References

git.kernel.org / stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470e
Patch
git.kernel.org / stable/c/39f8a29330f433000e716eefc4b9abda05b71a82
Patch
git.kernel.org / stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24f
Patch
git.kernel.org / stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001
Patch