Vulnerability in Linux

CVE-2025-40051

In the Linux kernel, the following vulnerability has been resolved: vhost: vringh: Modify the return value check The return value of copy_from_iter and copy_to_iter can't be negative, check whether the copied lengths are equal.

EPSS: 0.002 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 309bba39c945ac8ab8083ac05cd6cfe5822968e0, 6.0, 0

References

Frequently asked questions

What is CVE-2025-40051?
CVE-2025-40051 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-10-28.
How severe is CVE-2025-40051?
High severity. CVSS v3 base score is 7.8 out of 10.