What is CVE-2026-5295?

CVE-2026-5295 is a high-severity vulnerability in Wolfssl, classified under Stack-based Buffer Overflow. CVSS score: 8.0/10. Published 2026-04-09.

How severe is CVE-2026-5295?

High severity. CVSS v3 base score is 8.0 out of 10.

Buffer overflow in Wolfssl

CVE-2026-5295

A stack buffer overflow exists in wolfSSL's PKCS7 implementation in the wc_PKCS7_DecryptOri() function in wolfcrypt/src/pkcs7.c. When processing a CMS EnvelopedData message containing an OtherRecipientInfo (ORI) recipient, the function cop…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Wolfssl — versions 0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

facts@wolfssl.com (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2026-5295?: CVE-2026-5295 is a high-severity vulnerability in Wolfssl, classified under Stack-based Buffer Overflow. CVSS score: 8.0/10. Published 2026-04-09.
How severe is CVE-2026-5295?: High severity. CVSS v3 base score is 8.0 out of 10.