#VU125943 Out-of-bounds read in wolfSSL - CVE-2026-5393

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU125943

#VU125943 Out-of-bounds read in wolfSSL - CVE-2026-5393

Published: April 14, 2026


Vulnerability identifier: #VU125943
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-5393
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
wolfSSL
Software vendor:
wolfSSL

Description

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in dual-algorithm CertificateVerify message processing when handling crafted input. A remote attacker can send a specially crafted CertificateVerify message to cause a denial of service.

This can only occur in builds compiled with both --enable-experimental and --enable-dual-alg-certs.


Remediation

Install security update from vendor's website.

External links