CVE-2026-5392 LOW

CVE-2026-5392: wolfSSL heap OOB read in PKCS7 SignedData streaming

Vendor Wolfssl
Product wolfSSL
Weakness CWE-125
Published April 9, 2026
Last update April 10, 2026
View on NVD All CVEs

CVSS base score

2.3/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Heap out-of-bounds read in PKCS7 parsing. A crafted PKCS7 message can trigger an OOB read on the heap. The missing bounds check is in the indefinite-length end-of-content verification loop in PKCS7_VerifySignedData().

Key dates

02Disclosure timeline

April 9, 2026 CVE published
April 10, 2026 Record updated