VulnerabilityModified

CVE-2013-5056

HIGH 9.3EPSS 20.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 20.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Use-after-free vulnerability in the Scripting Runtime Object Library in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site that is visited with Internet Explorer, aka "Use-After-Free Vulnerability in Microsoft Scripting Runtime Object Library."

CVSS 2.0: 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS: 20.35% probability · 97th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-416
Affected: microsoft/windows 7 · microsoft/windows 8 · microsoft/windows 8.1 · microsoft/windows rt · microsoft/windows rt 8.1 · microsoft/windows server 2003 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows vista · microsoft/windows xp
Source: secure@microsoft.com

EPSS trend

EPSS 20.4% 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.

References

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-099Patch, Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-099Patch, Vendor Advisory

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