CVE-2017-8537
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 16.8%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to denial of service. aka "Microsoft Malware Protection Engine Denial of Service Vulnerability", a different vulnerability than CVE-2017-8535, CVE-2017-8536, CVE-2017-8539, and CVE-2017-8542.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 16.83% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 29 May 2017
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-369, CWE-476, CWE-674
- Affected
- microsoft/windows defender · microsoft/endpoint protection · microsoft/exchange server · microsoft/forefront endpoint protection · microsoft/security essentials · microsoft/system center endpoint protection · microsoft/windows intune endpoint protection
- Source
- secure@microsoft.com
EPSS 16.8% since 27 October 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.
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://www.securityfocus.com/bid/98705Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038571Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8537Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/42081/Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/98705Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038571Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8537Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/42081/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.