Internet Explorer on Microsoft Windows 8.1 and Windows RT 8.1, and Windows Server 2012 R2 allows an attacker to execute arbitrary code in the context of the current user when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability".
CVE-2017-8594
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.5; sources differ by 0.0.
- High exploitation likelihood — EPSS 50%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 98.8%
- KEV
- Not listed
Published
July 11, 2017
Last Modified
May 13, 2026
References (6)
- secure@microsofthttp://www.securityfocus.com/bid/99401
- secure@microsofthttps://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8594
- secure@microsofthttps://www.exploit-db.com/exploits/42336/
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99401
- af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8594
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/42336/
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 4× in last 7d / 27× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-04 06:28 UTCEPSS rescore
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- 2026-06-08 14:14 UTCEPSS rescore
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- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 11:51 UTCEG score recompute
- 2026-05-22 11:51 UTCVendor advisory
- 2026-05-22 11:51 UTCGHSA enrichment
- 2026-05-21 22:40 UTCEPSS rescore
- 2026-05-21 22:40 UTCEPSS rescore
- 2026-05-21 20:36 UTCOSV refresh
- 2026-05-20 22:37 UTCEPSS rescore
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- 2026-05-18 21:30 UTCEPSS rescore
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-42336✓ verifiedFirst seen Jul 18, 2017
Microsoft Internet Explorer 11.0.9600.18617 - 'CMarkup::DestroySplayTree' Memory Corruption
Open source ↗
Frequently asked(5)
What is CVE-2017-8594?
When was CVE-2017-8594 disclosed?
Is CVE-2017-8594 actively exploited?
What is the CVSS score of CVE-2017-8594?
How do I remediate CVE-2017-8594?
Dependency Blast Radius
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