CVE-2026-6094

CRITICAL

Heap buffer overread in wc_PKCS7_DecodeEnvelopedData parsing crafted PKCS7 EnvelopedData

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2

Scores

CVSS v3 9.1
EPSS 0.0029
EPSS Percentile 21.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (2)
wolfSSL/wolfSSL 5.8.0 - 5.9.1
wolfssl/wolfssl 5.8.0 - 5.9.2
Published Jun 25, 2026
Tracked Since Jun 25, 2026