CVE-2018-8413
A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files, aka "Windows Theme API Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019,…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 46.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
A remote code execution vulnerability exists when "Windows Theme API" does not properly decompress files, aka "Windows Theme API Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 46.25% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · first 29 January 2020
- CISA KEV
- Not listed
- Affected
- microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
- Source
- secure@microsoft.com
EPSS moved from 37.1% on 21 September 2026 to 46.3% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/156027/Microsoft-Windows-Theme-API-File-Parsing.html
- http://www.securityfocus.com/bid/105448Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041824Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8413Patch, Vendor Advisory
- http://packetstormsecurity.com/files/156027/Microsoft-Windows-Theme-API-File-Parsing.html
- http://www.securityfocus.com/bid/105448Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041824Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8413Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.