CVE-2026-6678
Medium
Description
Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption.
SeverityMedium
CVSS5.3
Exploit probability—
ProductWolfssl
PublishedJun 25, 2026
First seenJun 25, 2026
Weakness typeCWE-191CWE-191
How to fix
Update
- wolfssl wolfssl5.9.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wolfssl wolfssl | 3.15.5 ≤ v < 5.9.2 | 5.9.2 |
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