CVE-2026-69979
Windows AppX Deployment Service Security Feature Bypass Vulnerability
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Windows AppX Deployment Service Security Feature Bypass Vulnerability
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.
- Record
CVE-2026-69979- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C - Weakness
- CWE-424
- Updated
- 2026-11-02
EUVDEUVD-2026-99130
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.
- Record
EUVD-2026-99130- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-45h5-26qh-349v
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized...
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.
- Record
GHSA-45h5-26qh-349v- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-424
- Updated
- 2026-11-02
NVD
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.
- Record
CVE-2026-69979- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-424
- Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows 11 version 25h2
- microsoft windows 11 version 26h1
- microsoft windows 11 version 26h2
- microsoft windows server 2022
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
- microsoft windows 10 21h2
- microsoft windows 10 22h2
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-69979 is a medium vulnerability (CVSS 5.5) in Microsoft Windows 10 Version 21h2, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. No source names a fixed version.