VULNERABILITY INTELLIGENCE

CVE-2026-7531

CVSS score9.8 CRITICAL
EPSS probability0.50%
CISA KEVNot currently listed
Published2026-06-25
Last modified2026-06-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 (released in 5.9.1): a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory.

Weakness classification

  • facts@wolfssl.com: CWE-416

Primary references