CVE-2009-2525

NONECVSS 0.0Elevated
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 23%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Microsoft Windows Media Runtime, as used in DirectShow WMA Voice Codec, Windows Media Audio Voice Decoder, and Audio Compression Manager (ACM), does not properly initialize unspecified functions within compressed audio files, which allows remote attackers to execute arbitrary code via (1) a crafted media file or (2) crafted streaming content, aka "Windows Media Runtime Heap Corruption Vulnerability."

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses intrinsic severity with real-world exploitation and automatability, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
97.5%
KEV
Not listed

Published

October 14, 2009

Last Modified

April 23, 2026

References (6)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 34× 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.

  1. 2026-07-23 14:14 UTCEPSS rescore
  2. 2026-07-23 00:59 UTCEG score recompute
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  46. 2026-05-30 14:55 UTCEG score recompute
  47. 2026-05-30 14:55 UTCGHSA enrichment
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  63. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2009-2525?
CVE-2009-2525 is a none vulnerability published on October 14, 2009. Microsoft Windows Media Runtime, as used in DirectShow WMA Voice Codec, Windows Media Audio Voice Decoder, and Audio Compression Manager (ACM), does not properly initialize unspecified functions within compressed audio files, which allows remote attackers to execute arbitrary code via (1) a crafted…
When was CVE-2009-2525 disclosed?
CVE-2009-2525 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-2009-2525 actively exploited?
CVE-2009-2525 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-2525?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-2525, 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.

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