CVE-2009-2527

NONECVSS 0.0Elevated

0.0

Heap-based buffer overflow in Microsoft Windows Media Player 6.4 allows remote attackers to execute arbitrary code via (1) a crafted ASF file or (2) crafted streaming content, aka "WMP Heap Overflow Vulnerability."

CVSS v3: —
EG Score: 0.0(none)
EPSS: 97.8%
KEV: Not listed

Published

October 14, 2009

Last Modified

April 23, 2026

References (6)

secure@microsofthttp://www.us-cert.gov/cas/techalerts/TA09-286A.html
secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-052
secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6184
af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/cas/techalerts/TA09-286A.html
af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-052
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6184

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-119Buffer Operations Within Bounds (Buffer Overflow)

Data Freshness Timeline

(refreshed 9× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-21 01:56 UTCEPSS rescore
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2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:13 UTCEPSS rescore
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2026-05-30 14:55 UTCEG score recompute
2026-05-30 14:55 UTCGHSA enrichment
2026-05-29 13:40 UTCEPSS rescore
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2026-05-20 11:21 UTCEPSS rescore
2026-05-20 11:20 UTCEPSS rescore
2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2009-2527?

CVE-2009-2527 is a none vulnerability published on October 14, 2009. Heap-based buffer overflow in Microsoft Windows Media Player 6.4 allows remote attackers to execute arbitrary code via (1) a crafted ASF file or (2) crafted streaming content, aka "WMP Heap Overflow Vulnerability."

When was CVE-2009-2527 disclosed?

CVE-2009-2527 was first published in the National Vulnerability Database on October 14, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2009-2527 actively exploited?

CVE-2009-2527 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2009-2527?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-2527, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2009-2527

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-2527?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(4)

Related CVEs(same CWE)