SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-3127

The Microsoft WMV video codec in wmv9vcm.dll, wmvdmod.dll in Windows Media Format Runtime 9 and 9.5, and wmvdecod.dll in Windows Media Format Runtime 11 and Windows Media Player 11 and 12 allows remote attackers to execute arbitrary code via a crafted…

HIGH 9.3EPSS 21.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 21.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

The Microsoft WMV video codec in wmv9vcm.dll, wmvdmod.dll in Windows Media Format Runtime 9 and 9.5, and wmvdecod.dll in Windows Media Format Runtime 11 and Windows Media Player 11 and 12 allows remote attackers to execute arbitrary code via a crafted media file, aka "WMV Video Decoder Remote Code Execution Vulnerability."

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
21.91% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-94
Affected
microsoft/windows media format runtime · microsoft/windows media player
Source
secure@microsoft.com
EPSS trend
0%13%25%4 November 2026: 21.91%4 November 20264 November 2026

EPSS 21.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.