CVE-2026-5392
Medium
Description
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().
SeverityMedium
CVSS5.4
Exploit probability—
ProductWolfssl
PublishedApr 10, 2026
First seenApr 10, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- wolfssl wolfssl5.9.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wolfssl wolfssl | v < 5.9.1 | 5.9.1 |
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