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Case File

CVE-2009-4028

MEDIUM · CVSS 6.8 EPSS 1.77%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-11-30 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE
CVE-2009-4028
Severity
MEDIUM
CVSS
6.8
EPSS
1.77%
OpenSSL

Original Filing — NVD Description

The vio_verify_callback function in viosslfactories.c in MySQL 5.0.x before 5.0.88 and 5.1.x before 5.1.41, when OpenSSL is used, accepts a value of zero for the depth of X.509 certificates, which allows man-in-the-middle attackers to spoof arbitrary SSL-based MySQL servers via a crafted certificate, as demonstrated by a certificate presented by a server linked against the yaSSL library.