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CVE-2025-37802

17
FAUCET Score

CVE-2025-37802 is a medium-severity vulnerability in the Linux kernel's ksmbd module, affecting Linux systems. It stems from a programming error where a blocking operation (mutex acquisition) was attempted while the task was already in a sleeping state, leading to a kernel warning and potential system instability (Availability impact). The vulnerability has a CVSS score of 5.5, indicating a local attack vector with low attack complexity and privileges required, but a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.12.26CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.13, < 6.14.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
6.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*

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
2.6%
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 18th 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 (2)

microsoft2025-May/CVE-2025-37802Moderate

ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"

May 13, 2025
redhatCVE-2025-37802Moderate

kernel: ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"

May 8, 2025

References

git.kernel.org / stable/c/1df0d4c616138784e033ad337961b6e1a6bcd999
Patch
git.kernel.org / stable/c/8f805b3746d2f41702c77cba22f94f8415fadd1a
Patch
git.kernel.org / stable/c/cd161198e091e8a62b9bd631be970ea9a87d2d6a
Patch