Windows Media Center in Microsoft Windows Vista SP2, Windows 7 SP1, Windows 8, and Windows 8.1 allows user-assisted remote attackers to execute arbitrary code via a crafted Media Center link (mcl) file, aka "Windows Media Center RCE Vulnerability."
CVE-2015-2509
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 9.3 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 71.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- High exploitation likelihood — EPSS 71%
- Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 9.3HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 9.3(low)
- EG Risk
- 75(Track)EG Risk 75/100SSVC: Track
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. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity93% × 45%Exploitation71% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 71%
- EPSS %ILE
- 99%
- KEV
- Not listed
Published
September 9, 2015
Last Modified
May 6, 2026
References (12)
- secure@microsofthttp://www.rapid7.com/db/modules/exploit/windows/fileformat/ms15_100_mcl_exe
- secure@microsofthttp://www.securityfocus.com/bid/76594
- secure@microsofthttp://www.securitytracker.com/id/1033499
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-100
- secure@microsofthttps://www.exploit-db.com/exploits/38151/
- secure@microsofthttps://www.exploit-db.com/exploits/38195/
- af854a3a-2127-422b-91ae-364da2661108http://www.rapid7.com/db/modules/exploit/windows/fileformat/ms15_100_mcl_exe
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/76594
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1033499
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-100
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/38151/
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/38195/
Data Freshness Timeline
(refreshed 4× in last 7d / 16× 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.
- 2026-08-20 22:50 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
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- 2026-07-28 15:31 UTCEPSS rescore
- 2026-07-26 14:50 UTCEPSS rescore
- 2026-07-26 13:53 UTCEG score recompute▲ 9.30
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 01:17 UTCEG score recompute▼ 6.70
- 2026-07-23 00:19 UTCEG score recompute▲ 6.70
- 2026-07-22 21:58 UTCEG score recompute▼ 9.00
- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-07-13 22:26 UTCEPSS rescore
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- 2026-05-23 15:10 UTCEPSS rescore
- 2026-05-22 23:44 UTCEG score recompute
- 2026-05-22 23:44 UTCGHSA enrichment
- 2026-05-22 21:15 UTCEPSS rescore
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- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
Publicly available exploits
(3 references)Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-38195✓ verifiedFirst seen Sep 15, 2015
Microsoft Windows Media Center - MCL (MS15-100) (Metasploit)
Open source ↗ - Exploit-DBEDB-38151First seen Sep 11, 2015
Microsoft Windows Media Center - Command Execution (MS15-100)
Open source ↗ - Metasploitexploit/windows/fileformat/ms15_100_mcl_exe✓ verifiedFirst seen Sep 8, 2015
MS15-100 Microsoft Windows Media Center MCL Vulnerability
Open source ↗
Frequently asked(4)
What is CVE-2015-2509?
When was CVE-2015-2509 disclosed?
Is CVE-2015-2509 actively exploited?
How do I remediate CVE-2015-2509?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2015-2509
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