CVE-2026-5393

CRITICAL

OOB Read in DoTls13CertificateVerify with WOLFSSL_DUAL_ALG_CERTS

Title source: cna

Description

Dual-Algorithm CertificateVerify out-of-bounds read. When processing a dual-algorithm CertificateVerify message, an out-of-bounds read can occur on crafted input. This can only occur when --enable-experimental and --enable-dual-alg-certs is used when building wolfSSL.

References (1)

Core 1

Core References

https://github.com/wolfSSL/wolfssl/pull/10079

Scores

CVSS v3 9.1

EPSS 0.0019

EPSS Percentile 9.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-125

Status published

Products (2)

wolfSSL/wolfSSL < 5.9.1

wolfssl/wolfssl < 5.9.1

Published Apr 10, 2026

Tracked Since Apr 10, 2026