AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2025-40291

HIGH · CVSS 7.8 EPSS 0.13%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-12-08 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It affects Linux.

CVE
CVE-2025-40291
Severity
HIGH
CVSS
7.8
EPSS
0.13%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix regbuf vector size truncation There is a report of io_estimate_bvec_size() truncating the calculated number of segments that leads to corruption issues. Check it doesn't overflow "int"s used later. Rough but simple, can be improved on top.