CVE-2019-0959 json
Windows Common Log File System Driver Elevation of Privilege Vulnerability
published 2019-06-12 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-1694
- cvss
- 7.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.5%
- EPSS 3.5% chance of exploitation in 30 days, percentile 89%
- public exploits
- 1
- Exploit-DB
Summary
An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by correcting how CLFS handles objects in memory.
Patch / fix
Timeline
- Published
- First public exploit (EDB-47028)
Exploit prediction
3.54% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-47028 Microsoft Windows - 'CmpAddRemoveContainerToCLFSLog' Arbitrary File/Directory Creation dos, 2019-06-24
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C |
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Microsoft Windows 10 Version 1803
- Microsoft Windows Server, version 1803 (Server Core Installation)
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows 10 Version 1903 for 32-bit Systems
- Microsoft Windows 10 Version 1903 for x64-based Systems
- Microsoft Windows 10 Version 1903 for ARM64-based Systems
- Microsoft Windows Server, version 1903 (Server Core installation)
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2019-0959
patch, vendor-advisory
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2019-0959
vendor-advisory
Sources
- CVE List CVE-2019-0959
- NVD CVE-2019-0959
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