CVE-2026-6094

FAUCET Score

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.

First published: Jun 25, 2026Last modified: Jun 25, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 5.8.0, < 5.9.2CPE matchmatch criteria	cpe:2.3:a:wolfssl:wolfssl::::::::
		>= 5.8.0, <= 5.9.1CPE match	cpe:2.3:a:wolfssl:wolfssl::::::::

CVSS Data

CVSS version used by this source: 4.0

6.3MEDIUM

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

NETWORK

Attack Complexity

LOW

Attack Requirements

PRESENT

Privileges Required

NONE

User Interaction

NONE

VS Confidentiality

NONE

VS Integrity

NONE

VS Availability

LOW

SS Confidentiality

NONE

SS Integrity

NONE

SS Availability

NONE

Exploit Maturity

NOT_DEFINED

CvssVersion

4.0

Exploit Intelligence

EPSS Score

0.29%

Probability of exploitation in next 30 days

EPSS Percentile

21.7%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0029 is in the 2nd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference

View patch

Vendor Advisories (1)

microsoft2026-Jun/CVE-2026-6094Moderate

Heap buffer overread in wc_PKCS7_DecodeEnvelopedData parsing crafted PKCS7 EnvelopedData

Jun 9, 2026

References

github.com / wolfSSL/wolfssl/pull/10128

Issue TrackingPatch

wolfssl.com / docs/security-vulnerabilities

Vendor Advisory