Vulnerability in Microsoft Windows
CVE-2019-0841
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2…
EPSS: 0.414 (98.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
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_1703
- Microsoft Windows_10_1709
- Microsoft Windows_10_1803
- Microsoft Windows_10_1809
- Microsoft Windows Server — versions version 1709 (Core Installation), version 1803 (Core Installation), 2019
- Microsoft Windows_server_2016 — versions 1803
- Microsoft Windows_server_2019
Weakness classification (CWE)
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
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- secure@microsoft.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- secure@microsoft.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- secure@microsoft.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- secure@microsoft.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- secure@microsoft.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-0841?
- CVE-2019-0841 is a high-severity vulnerability in Microsoft Windows, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2019-04-09.
- How severe is CVE-2019-0841?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-0841 known to be exploited?
- Yes. CVE-2019-0841 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-15), indicating it is being actively exploited. 67 public proof-of-concept repositories are indexed.