CVE-2017-8538 EXPLOIT
7.8
HIGH · CVSS 3.0 · EPSS 50% (pctl 99)
Patch early
A public exploit exists.
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 memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability", a different vulnerability than CVE-2017-8540 and CVE-2017-8541.
Scoring
| CVSS | 7.8 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 50% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2017-05-26 |
| Last modified | 2026-06-17 |
Affected (11)
| Vendor | Product |
|---|---|
| microsoft | exchange server |
| microsoft | forefront security |
| microsoft | malware protection engine |
| microsoft | windows 10 |
| microsoft | windows 7 |
| microsoft | windows 8.1 |
| microsoft | windows defender |
| microsoft | windows rt 8.1 |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
| microsoft | windows server 2016 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft MsMpEng - Multiple Crashes While Scanning Malformed Files | 2017-05-29 |
References
- http://www.securityfocus.com/bid/98706
- http://www.securitytracker.com/id/1038571
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8538
- https://www.exploit-db.com/exploits/42081/
- http://www.securityfocus.com/bid/98706
- http://www.securitytracker.com/id/1038571
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8538
- https://www.exploit-db.com/exploits/42081/
→ the Explorer · watch your stack · NVD