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CVE-2025-38243

17
FAUCET Score

CVE-2025-38243 is a Linux kernel vulnerability affecting the btrfs filesystem, where invalid inode pointer dereferences during log replay can lead to a system crash. This medium-severity vulnerability (CVSS 5.5) has a local attack vector with low complexity, requiring local privileges to trigger a high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion beyond a single security update mention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.15, < 6.15.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*

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
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 22nd 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

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-2025-38243Moderate

kernel: btrfs: fix invalid inode pointer dereferences during log replay

Jul 9, 2025

References

git.kernel.org / stable/c/2dcf838cf5c2f0f4501edaa1680fcad03618d760
Patch
git.kernel.org / stable/c/401d098f92ea69d8a75f8b845daf343e511681ba
Patch
git.kernel.org / stable/c/ba8386d662cc51cc5382688bbf7a152b0b0b27cf
Patch