Vulnerability Details CVE-2026-5504
A padding oracle exists in wolfSSL's PKCS7 CBC decryption that could allow an attacker to recover plaintext through repeated decryption queries with modified ciphertext. In previous versions of wolfSSL the interior padding bytes are not validated.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.9%
CVSS Severity