CVE-2026-31633CRITICAL 9.8EPSS p36.9%

CVE-2026-31633CVE-2026-31633

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix integer overflow in rxgk_verify_response() In rxgk_verify_response(), there's a potential integer overflow due to rounding up token_len before checking it, thereby allowing the length check to be bypassed. Fix this by checking the unrounded value against len too (len is limited as the response must fit in a single UDP packet).

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.47% probability of exploitation · percentile 36.9% · 2026-06-19T12:03:05Z
Published2026-04-24
Last modified2026-04-27

Underlying weaknesses· 1

CWE-190

References

  1. https://git.kernel.org/stable/c/1f864d9daaf622aeaa774404fd51e7d6a435b046
  2. https://git.kernel.org/stable/c/699e52180f4231c257821c037ed5c99d5eb0edb8
  3. https://git.kernel.org/stable/c/c1e242beb6b1efc3c286f617e8d940c8fbf2ed41

1

TypeTargetConfidenceTier
WeaknessInteger Overflow or Wraparoundcwe-1900%live

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