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CVE-2025-39729

22
FAUCET Score

CVE-2025-39729 addresses a vulnerability in the Linux kernel's crypto:ccp module, specifically a fix for dereferencing an uninitialized error pointer within the sev-dev.c file. This flaw, affecting Linux kernel versions, could lead to a denial of service (A:H) with low attack complexity (AC:L) and requires local access (AV:L, PR:L). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:*:*:*:*:*:*:*

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
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
3.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 21st 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

Vendor Advisories (1)

redhatCVE-2025-39729

kernel: crypto: ccp - Fix dereferencing uninitialized error pointer

Sep 7, 2025

References

git.kernel.org / stable/c/0fa766726c091ff0ec7d26874f6e4724d23ecb0e
Patch
git.kernel.org / stable/c/26eb4fceaf8cad2b92255baf7f185b0a1e3f070c
git.kernel.org / stable/c/841634e1fdc2bdf35ab851fc279fd3bedcdf5e93
Patch