The Microsoft Server Message Block (SMB) Server in Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2008 SP2 and R2 SP1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703 and 1709, Windows Server 2016 and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way SMB Server handles specially crafted files, aka "Windows Elevation of Privilege Vulnerability".
CVE-2018-0749
Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(medium)
- EPSS
- 86.6%
- KEV
- Not listed
Published
January 4, 2018
Last Modified
November 21, 2024
References (10)
- secure@microsofthttp://www.securityfocus.com/bid/102355
- secure@microsofthttp://www.securitytracker.com/id/1040096
- secure@microsofthttps://95cnsec.com/windows-smb-cve-2018-0749-exploit.html
- secure@microsofthttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0749
- secure@microsofthttps://www.exploit-db.com/exploits/43517/
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/102355
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040096
- af854a3a-2127-422b-91ae-364da2661108https://95cnsec.com/windows-smb-cve-2018-0749-exploit.html
- af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0749
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/43517/
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 12× in last 7d / 43× 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.
- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 12:53 UTCEG score recompute
- 2026-05-28 12:53 UTCVendor advisory
- 2026-05-28 12:53 UTCGHSA enrichment
- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-23 02:35 UTCOSV refresh
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-43517✓ verifiedFirst seen Jan 11, 2018
Microsoft Windows SMB Server (v1/v2) - Mount Point Arbitrary Device Open Privilege Escalation
Open source ↗
Frequently asked(5)
What is CVE-2018-0749?
When was CVE-2018-0749 disclosed?
Is CVE-2018-0749 actively exploited?
What is the CVSS score of CVE-2018-0749?
How do I remediate CVE-2018-0749?
Dependency Blast Radius
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