Wolfssl Wolfssl — CVE-2026-6094 (Critical)

Date Jun 25, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Wolfssl · Wolfssl

CVE CVE-2026-6094

Critical vendor advisory CVE-2026-6094

Summary

Heap buffer overread in wc_PKCS7_DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS.

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 9.1) in Wolfssl Wolfssl. Patch or mitigate promptly. EPSS percentile: 18%.

Operator check

Review CVE-2026-6094 in your asset inventory. Apply patches per vendor guidance and verify Wolfssl is not exposed. CVSS score: 9.1. EPSS probability: 0.3%; percentile: 18%.

Sources

NVD — CVE-2026-6094 Source reference Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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