CVE-2026-33845CRITICAL 7.5EPSS p47.1%

CVE-2026-33845CVE-2026-33845

gnu / gnutls

Description

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service.

Scoring

CVSS 3.17.5 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS0.67% probability of exploitation · percentile 47.1% · 2026-06-19T12:03:05Z
Published2026-04-30
Last modified2026-06-02

Underlying weaknesses· 1

CWE-191

References

  1. https://access.redhat.com/errata/RHSA-2026:13274
  2. https://access.redhat.com/errata/RHSA-2026:20611
  3. https://access.redhat.com/security/cve/CVE-2026-33845
  4. https://bugzilla.redhat.com/show_bug.cgi?id=2450624

1

TypeTargetConfidenceTier
WeaknessInteger Underflow (Wrap or Wraparound)cwe-1910%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.