CVE-2009-4171

MEDIUM · CVSS 4.3 EPSS 5.09%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-12-02 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE

CVE-2009-4171

Severity

MEDIUM

CVSS

4.3

EPSS

5.09%

Original NVD Description

An ActiveX control in YahooBridgeLib.dll for Yahoo! Messenger 9.0.0.2162, and possibly other 9.0 versions, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by calling the RegisterMe method with a long argument.