CVE-2006-6603: n/a vulnerability

CVE-2006-6603: Buffer overflow in the YMMAPI.YMailAttach ActiveX control (ymmapi.dll) before 2005.1.1.4 in Yahoo!

Buffer overflow in the YMMAPI.YMailAttach ActiveX control (ymmapi.dll) before 2005.1.1.4 in Yahoo! Messenger allows remote attackers to execute arbitrary code via a crafted HTML document. NOTE: some details were obtained from third party information.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 20:33 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy Yahoo Messenger issue where a vulnerable ActiveX component could let an attacker run code if a user opened crafted HTML. The business risk is concentrated in old Windows environments that still retain Yahoo Messenger or its ActiveX control. Exposure is most likely on legacy Windows desktops with Yahoo Messenger components or the YMMAPI.YMailAttach ActiveX control installed. Modern environments without this obsolete component are unlikely to be affected. Treat this as a legacy exposure cleanup item with high impact if present. It should be urgent only where old Yahoo Messenger or ActiveX-capable browser workflows still exist. Mitigation focus: Check Yahoo’s referenced security update for vendor-approved remediation.; Upgrade vulnerable Yahoo Messenger components to 2005.1.1.4 or later where applicable.; Remove Yahoo Messenger and related ActiveX controls if no longer required..

Prepared: Jun 29, 2026, 08:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 15, 2006, 22:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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