7.8high

CVE-2017-8540KEVin critical feed1 exploit

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 S…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.1 · CNA
CISA KEV
Yes
added 2022-03-03
EPSS
71.9%
percentile 99%
Public exploits
1
Exploit-DB

Summary

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-2017-8538 and CVE-2017-8541.

Known exploited (CISA KEV)

Added
4 y ago
Due date
2022-03-24 (4 y ago)
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Vendor / product
Microsoft / Malware Protection Engine
CISA name
Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability

CISA SSVC assessment

Exploitation
Active — exploited in the wild
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction (EPSS)

71.87% probability of exploitation in the next 30 days, higher than 99% of all scored CVEs.

Exploits and detections

  • EDB-42088 Microsoft MsMpEng - Remote Use-After-Free Due to Design Issue in GC Engine · dos · 2017-05-30

CVSS scores

Assigned byVersionScoreVector
CISA ADP3.17.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD3.17.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA3.17.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD2.09.3AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft Corporation Malware Protection Engine

Classification

Weakness
Technology feeds
Microsoft Exchange (RSS, critical only)

References

  • portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2017-8540 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/98703 · vdb-entry, x_refsource_BID, x_transferred
  • exploit-db.com /exploits/42088/ · exploit, x_refsource_EXPLOIT-DB, x_transferred
  • securitytracker.com /id/1038571 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8540 · government-resource

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.