What is CVE-2025-21691?

CVE-2025-21691 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-02-10.

How severe is CVE-2025-21691?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2025-21691

In the Linux kernel, the following vulnerability has been resolved: cachestat: fix page cache statistics permission checking When the 'cachestat()' system call was added in commit cf264e1329fb ("cachestat: implement cachestat syscall")…

EPSS: 0.002 (8.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions cf264e1329fb0307e044f7675849f9f38b44c11a, 6.5, 0
Linux Linux_kernel — versions 6.13

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2025-21691?: CVE-2025-21691 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-02-10.
How severe is CVE-2025-21691?: Medium severity. CVSS v3 base score is 5.5 out of 10.