CVE-2017-8587 — Windows Explorer in Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8

Windows Explorer in 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 allows a denial of service vulnerability when it attempts to open a non-existent file, aka "Windows Explorer Denial of S

01What is this vulnerability?

Windows Explorer in 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 allows a denial of service vulnerability when it attempts to open a non-existent file, aka "Windows Explorer Denial of Service Vulnerability".

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-07-11T21:29:01.670
• Last modified: 2026-05-13T00:24:29.033

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/99413
• www.securitytracker.com — http://www.securitytracker.com/id/1038850
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8587
• www.securityfocus.com — http://www.securityfocus.com/bid/99413
• www.securitytracker.com — http://www.securitytracker.com/id/1038850
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8587