Internet Explorer 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, and 1703, and Windows Server 2016 Internet Explorer in the way affected Microsoft scripting engines render when handling objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This CVE ID is unique from CVE-2017-8596, CVE-2017-8610, CVE-2017-8601, CVE-2017-8603, CVE-2017-8604, CVE-2017-8605, CVE-2017-8606, CVE-2017-8607, CVE-2017-8608, CVE-2017-8619, CVE-2017-9598 and CVE-2017-8609.
CVE-2017-8618
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 58%
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
- 99.0%
- KEV
- Not listed
Published
July 11, 2017
Last Modified
May 13, 2026
References (8)
- secure@microsofthttp://www.securityfocus.com/bid/99399
- secure@microsofthttp://www.securitytracker.com/id/1038848
- secure@microsofthttps://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8618
- secure@microsofthttps://www.exploit-db.com/exploits/42337/
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99399
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038848
- af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8618
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/42337/
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 5× in last 7d / 28× 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.
- 2026-07-05 02:27 UTCEPSS rescore
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- 2026-06-10 13:19 UTCEPSS rescore
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- 2026-05-22 11:51 UTCEG score recompute
- 2026-05-22 11:51 UTCVendor advisory
- 2026-05-22 11:51 UTCGHSA enrichment
- 2026-05-22 09:26 UTCOSV refresh
- 2026-05-21 22:40 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-42337✓ verifiedFirst seen Jul 18, 2017
Microsoft Internet Explorer 11.1066.14393.0 - VBScript Arithmetic Functions Type Confusion
Open source ↗
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- CVE-2013-3900NVD 5.5EG 9.0 KEVEPSS 99%MEDIUM
- CVE-2013-2094NVD 8.4EG 9.0 KEVEPSS 99%HIGH
- CVE-2014-9356EG 8.6EPSS 91%HIGH
- CVE-2014-5282EG 8.1HIGH
- CVE-2014-8141EG 7.8EPSS 94%HIGH
Frequently asked(5)
What is CVE-2017-8618?
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What is the CVSS score of CVE-2017-8618?
How do I remediate CVE-2017-8618?
Dependency Blast Radius
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