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CVE-2009-4171

MediumCVSS 4.3/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 4.3/10AV:N/AC:M/Au:N/C:N/I:N/A:P

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published: Dec 2, 2009
Last modified: Jun 16, 2026
NVD status: Modified

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CVE-2009-4171: Medium severity, CVSS 4.3 | Vulnix