CVE-2026-5393

OOB Read in DoTls13CertificateVerify with WOLFSSL_DUAL_ALG_CERTS

State: Published
Severity: 6.3 Medium
Published: Apr 9, 2026
Updated: Apr 10, 2026
Reserved: Apr 1, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N	wolfSSL

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
wolfSSLwolfSSL	before 5.9.1Affected

References

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

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