HIGH KEV Used in ransomware campaigns ⚠
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'
Published Apr 9, 2019 ·Due Apr 5, 2022
7.8
HIGHCVSS 3.1
EPSS 41.40%
Description
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-2019-0796, CVE-2019-0805, CVE-2019-0836.
Affected products
-
- Version 10 Version 1703 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1703 for x64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1709 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1709 for ARM64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1709 for x64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1803 for ARM64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1809 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1809 for ARM64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1809 for x64-based SystemsStatusaffectedConstraints-
- Version
-
- Version 2019StatusaffectedConstraints-
- Version 2019 (Core installation)StatusaffectedConstraints-
- Version version 1709 (Core Installation)StatusaffectedConstraints-
- Version version 1803 (Core Installation)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Windows | n/a |
| ||||||||||||||||||||||||||||||||||||
| Microsoft | Windows Server | n/a |
|
OR
- n/a
- n/a
- n/a
- n/a
- 1803
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.8 HIGH NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
7.2 HIGH NVD
AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
Listed in CISA KEV KEV Used in ransomware campaigns ⚠
Date Added
Mar 15, 2022
Patch Due
Apr 5, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Feb 7, 2025 · SSVC 2.0.3
41.40% 0.41400
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.41400
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (38 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 41.40% (0.41400) | 98.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 41.67% (0.41667) | 98.50th | v5 (v2026.06.15) |
| Dec 31, 2025 | 82.81% (0.82809) | 99.21th | v4 (v2025.03.14) |
| Oct 22, 2025 | 80.80% (0.80798) | 99.09th | v4 (v2025.03.14) |
| Sep 15, 2025 | 84.83% (0.84830) | 99.30th | v4 (v2025.03.14) |
| Mar 30, 2025 | 85.92% (0.85917) | 99.34th | v4 (v2025.03.14) |
| Mar 29, 2025 | 84.15% (0.84153) | 99.13th | v4 (v2025.03.14) |
| Mar 28, 2025 | 85.92% (0.85917) | 99.34th | v4 (v2025.03.14) |
| Mar 17, 2025 | 83.51% (0.83513) | 99.24th | v4 (v2025.03.14) |
| Feb 16, 2025 | 83.64% (0.83635) | 98.72th | v3 (v2023.03.01) |
| Jan 22, 2025 | 82.33% (0.82325) | 98.64th | v3 (v2023.03.01) |
| Dec 17, 2024 | 84.55% (0.84549) | 98.72th | v3 (v2023.03.01) |
| Apr 2, 2024 | 86.55% (0.86552) | 98.53th | v3 (v2023.03.01) |
| Feb 29, 2024 | 86.70% (0.86700) | 98.50th | v3 (v2023.03.01) |
| Dec 5, 2023 | 86.86% (0.86855) | 98.30th | v3 (v2023.03.01) |
| Oct 21, 2023 | 88.34% (0.88343) | 98.33th | v3 (v2023.03.01) |
| Sep 20, 2023 | 87.53% (0.87528) | 98.23th | v3 (v2023.03.01) |
| Sep 5, 2023 | 89.68% (0.89679) | 98.35th | v3 (v2023.03.01) |
| Aug 21, 2023 | 85.68% (0.85679) | 98.11th | v3 (v2023.03.01) |
| Jul 8, 2023 | 87.20% (0.87197) | 98.14th | v3 (v2023.03.01) |
| Jul 5, 2023 | 88.27% (0.88271) | 98.19th | v3 (v2023.03.01) |
| Jun 19, 2023 | 88.63% (0.88631) | 98.19th | v3 (v2023.03.01) |
| Jun 4, 2023 | 88.58% (0.88580) | 98.18th | v3 (v2023.03.01) |
| May 19, 2023 | 89.26% (0.89256) | 98.20th | v3 (v2023.03.01) |
| May 8, 2023 | 85.53% (0.85534) | 98.00th | v3 (v2023.03.01) |
| May 3, 2023 | 84.15% (0.84151) | 97.92th | v3 (v2023.03.01) |
| Apr 16, 2023 | 85.89% (0.85894) | 97.99th | v3 (v2023.03.01) |
| Mar 21, 2023 | 85.51% (0.85510) | 97.94th | v3 (v2023.03.01) |
| Mar 16, 2023 | 87.40% (0.87396) | 98.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 88.91% (0.88913) | 98.08th | v3 (v2023.03.01) |
| Mar 6, 2023 | 39.81% (0.39806) | 98.14th | v2 (v2022.01.01) |
| Oct 4, 2022 | 39.81% (0.39806) | 98.05th | v2 (v2022.01.01) |
| Feb 4, 2022 | 40.94% (0.40935) | 97.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 87.81% (0.87805) | 99.92th | v1 |
| Sep 16, 2021 | 87.81% (0.87805) | 99.96th | v1 |
| Sep 14, 2021 | 49.35% (0.49353) | 99.66th | v1 |
| Sep 1, 2021 | 87.81% (0.87805) | 99.96th | v1 |
| Apr 14, 2021 | 87.81% (0.87805) | 0.00th | v1 |
Weaknesses (1)
References (9)
- http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.html x_refsource_MISCThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html x_refsource_MISCThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html x_refsource_MISCThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html x_refsource_MISCThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841 x_refsource_MISCPatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0841 government-resourceUS Government Resource
- https://www.exploit-db.com/exploits/46683/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-19-360/ x_refsource_MISCThird Party AdvisoryVDB Entry
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Apr 9, 2019
Updated Oct 21, 2025
Reserved Nov 26, 2018
Link CVE-2019-0841
CISA Vulnrichment
Updated Feb 7, 2025