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CVE-2009-0647

5.0 · MEDIUM

msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other 14.0.8064.x builds, allows remote attackers to cause a denial of service (application crash) via a modified header in…

Published Feb 19, 2009microsoftCWE-20EPSS 17.36%

Overview

CVE-2009-0647 is a medium-severity vulnerability affecting microsoft windows_live_messenger. It was published on February 19, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other 14.0.8064.x builds, allows remote attackers to cause a denial of service (application crash) via a modified header in a packet, as possibly demonstrated by a UTF-8.0 value of the charset field in the Content-Type header line. NOTE: this has been reported as a format string vulnerability by some sources, but the provenance of that information is unknown.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update windows_live_messenger to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refsecunia.com/advisories/33985Refwww.securityfocus.com/archive/1/501043/100/0/threadedRefwww.securityfocus.com/bid/33825Refwww.vupen.com/english/advisories/2009/0466Refexchange.xforce.ibmcloud.com/vulnerabilities/48810Refsecunia.com/advisories/33985Refwww.securityfocus.com/archive/1/501043/100/0/threadedRefwww.securityfocus.com/bid/33825Refwww.vupen.com/english/advisories/2009/0466Refexchange.xforce.ibmcloud.com/vulnerabilities/48810

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0647?

CVE-2009-0647 is a medium-severity vulnerability affecting microsoft windows_live_messenger. It was published on February 19, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2009-0647?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-0647?

Check the references section for vendor advisories and patches from microsoft. Update windows_live_messenger to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-0647?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0647 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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