CVE-2017-8636 — Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windo

Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user due to

01What is this vulnerability?

Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user due to the way that Microsoft browser JavaScript engines render content when handling objects in memory, aka "Scripting Engine…

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: 2017-08-08T21:29:00.987
• Last modified: 2026-05-13T00:24:29.033

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/100056
• www.securitytracker.com — http://www.securitytracker.com/id/1039094
• www.securitytracker.com — http://www.securitytracker.com/id/1039095
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8636
• www.exploit-db.com — https://www.exploit-db.com/exploits/42466/
• www.exploit-db.com — https://www.exploit-db.com/exploits/42467/
• www.exploit-db.com — https://www.exploit-db.com/exploits/42468/
• www.exploit-db.com — https://www.exploit-db.com/exploits/42478/
• www.securityfocus.com — http://www.securityfocus.com/bid/100056
• www.securitytracker.com — http://www.securitytracker.com/id/1039094