PT-2026-34985 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-04-28 · CVE-2026-31633

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An integer overflow exists in the rxgk verify response() function. This occurs because token len is rounded up before being checked, which allows the length check to be bypassed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-31633

Affected Products

Linux Kernel

References · 11

• https://cve.org/CVERecord?id=CVE-2026-31633 · Security Note
• https://git.kernel.org/stable/c/699e52180f4231c257821c037ed5c99d5eb0edb8 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31633 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31633 · Vendor Advisory
• https://git.kernel.org/stable/c/1f864d9daaf622aeaa774404fd51e7d6a435b046 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31633 · Vendor Advisory
• https://git.kernel.org/stable/c/c1e242beb6b1efc3c286f617e8d940c8fbf2ed41 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31633 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31633 · Vendor Advisory
• https://git.kernel.org/linus/699e52180f4231c257821c037ed5c99d5eb0edb8 · Note
• https://twitter.com/CVEnew/status/2047731953227456990 · Twitter Post