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CVSS 9.1 · CRITICAL

CVE-2026-6094

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.

Ver en NVD

Análisis

A critical heap buffer overread vulnerability has been identified in wolfSSL's PKCS7 decoding logic. Applications using wolfSSL to process S/MIME or CMS-encrypted data are at risk of memory corruption and potential code execution when parsing maliciously crafted data.

Roles relevantes

BackendCC++HardwareCyberSecurityLinux

Severidad

Puntaje: 9.1(CRITICAL)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: UNCHANGED
C: HIGH
I: NONE
A: HIGH
Tipo de falla (CWE): CWE-125

EPSS

Probabilidad de explotación (próx. 30 días): 0.0026 (0.3%)
Percentil: 17.6%
EPSS: 2026-06-26

Afecta

wolfssl:wolfssl

Descripción técnica

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.

Publicada: 25/6/2026, 18:16:41
Última modificación: 26/6/2026, 16:51:02

Referencias

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