Protection mechanism failure in wolfSSL - CVE-2026-6092
Published: July 1, 2026
Vulnerability identifier: #VU136648
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-6092
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: wolfSSL
Affected software:
wolfSSL
wolfSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to weaken message integrity protections.
The vulnerability exists due to improper protocol enforcement in the TLS record protection implementation when HAVE_ENCRYPT_THEN_MAC is configured. A remote attacker can trigger fallback behavior to weaken message integrity protections.
The issue occurs only when HAVE_ENCRYPT_THEN_MAC is configured.
How to mitigate CVE-2026-6092
Install security update from vendor's website.