CVE-2026-6094CWE-125

Heap buffer overread in wc_PKCS7_DecodeEnvelopedData parsing crafted PKCS7 EnvelopedData

Medium · published June 25, 2026

CVSS v4.0
6.3
EPSS
1%
Percentile
43.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00516 · 43.0th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-06-25T16:35Z
EPSS history
Timeline
  • 25 JUN 16:35Z
    Heap buffer overread in wc_PKCS7_DecodeEnvelopedData parsing crafted PKCS7 EnvelopedData
    cvelistv5