Vulnerability in Microsoft Windows
CVE-2019-1253
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation…
EPSS: 0.277 (96.5th percentile) — read the EPSS interpretation.
Affected products
- Microsoft Windows — versions 10 Version 1703 for 32-bit Systems, 10 Version 1703 for x64-based Systems, 10 Version 1709 for 32-bit Systems
- Microsoft Windows 10 Version 1903 For 32-bit Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For Arm64-based Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For X64-based Systems — versions unspecified
- Microsoft Windows Server — versions version 1803 (Core Installation), 2019, 2019 (Core installation)
- Microsoft Windows Server, Version 1903 (Server Core Installation) — versions unspecified
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1253 (x_refsource_MISC)
- packetstormsecurity.com/files/154488/AppXSvc-17763.1.amd64fre.rs5_release.18091… (x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-1253?
- CVE-2019-1253 is a vulnerability in Microsoft Windows. Published 2019-09-11.
- Is CVE-2019-1253 known to be exploited?
- Yes. CVE-2019-1253 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-15), indicating it is being actively exploited. 58 public proof-of-concept repositories are indexed.