CVE-2019-1161 json
Microsoft Defender Elevation of Privilege Vulnerability
published 2019-08-14 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-9733
- cvss
- 7.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted command that could exploit the vulnerability and delete protected files on an affected system once MpSigStub.exe ran again. The update addresses the vulnerability and blocks the arbitrary deletion.
Patch / fix
Exploit prediction
0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| NVD | 2.0 | 6.6 | AV:L/AC:L/Au:N/C:N/I:C/A:C |
Affected products
- Microsoft Microsoft Forefront Endpoint Protection 2010
- Microsoft Microsoft System Center Endpoint Protection
- Microsoft Microsoft System Center 2012 R2 Endpoint Protection
- Microsoft Microsoft Security Essentials
- Microsoft Microsoft System Center 2012 Endpoint Protection
- Microsoft Windows Defender
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2019-1161
patch, vendor-advisory
Sources
- CVE List CVE-2019-1161
- NVD CVE-2019-1161
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