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Case File

CVE-2006-4339

MEDIUM · CVSS 4.3 EPSS 5.00%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2006-09-05 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE
CVE-2006-4339
Severity
MEDIUM
CVSS
4.3
EPSS
5.00%
OpenSSL

Original Filing — NVD Description

OpenSSL before 0.9.7, 0.9.7 before 0.9.7k, and 0.9.8 before 0.9.8c, when using an RSA key with exponent 3, removes PKCS-1 padding before generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents OpenSSL from correctly verifying X.509 and other certificates that use PKCS #1.