CVE-2026-5264CRITICAL 9.8EPSS p35.4%

CVE-2026-5264CVE-2026-5264

Description

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow.

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
EPSS0.45% probability of exploitation · percentile 35.4% · 2026-06-19T12:03:05Z
Published2026-04-09
Last modified2026-04-29

Underlying weaknesses· 1

CWE-122

References

  1. https://github.com/wolfssl/wolfssl/pull/10076

1

TypeTargetConfidenceTier
WeaknessHeap-based Buffer Overflowcwe-1220%live

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