CVE-2017-8540
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2022-03-03 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2022-03-24 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 71.9% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2022-03-03
- Exploit probability
- 71.9% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Analyzed
Affected
- Microsoft Malware Protection Engine < 1.1.13704.0
- Microsoft Endpoint Protection
- Microsoft Exchange Server 2013
- Microsoft Exchange Server 2016
- Microsoft Forefront Endpoint Protection
- Microsoft Forefront Endpoint Protection 2010
- Microsoft Forefront Security
- Microsoft Intune Endpoint Protection
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2017-8540.md and follow it. Check whether this project is affected by CVE-2017-8540. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540
References
- http://www.securityfocus.com/bid/98703
- http://www.securitytracker.com/id/1038571
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540
- https://www.exploit-db.com/exploits/42088/
- http://www.securityfocus.com/bid/98703
- http://www.securitytracker.com/id/1038571
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8540
- https://www.exploit-db.com/exploits/42088/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8540