CVE-2026-69441Windows Installer Elevation of Privilege Vulnerability
- 7.0HighCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privileges locally.
Timeline
ID reserved
By microsoft
- 36 days later
· 36 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| NVDNVD · Analyzed | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Affected products
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.9512
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.9245
Microsoft · Windows 10 Version 21H2
- affected 10.0.19044.0 – < 10.0.19044.7725
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.7725
Microsoft · Windows 11 version 23H2
- affected 10.0.22631.0 – < 10.0.22631.7582
Microsoft · Windows 11 Version 23H2
- affected 10.0.22631.0 – < 10.0.22631.7582
Microsoft · Windows 11 Version 24H2
- affected 10.0.26100.0 – < 10.0.26100.9445
Microsoft · Windows 11 Version 25H2
- affected 10.0.26200.0 – < 10.0.26200.9445
Microsoft · Windows 11 version 26H1
- affected 10.0.28000.0 – < 10.0.28000.2954
Microsoft · Windows Server 2012
- affected 6.2.9200.0 – < 6.2.9200.26349
Microsoft · Windows Server 2012 (Server Core installation)
- affected 6.2.9200.0 – < 6.2.9200.26349
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < 6.3.9600.23398
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < 6.3.9600.23398
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.9512
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.9512
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.9245
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.9245
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.5622
Microsoft · Windows Server 2025
- affected 10.0.26100.0 – < 10.0.26100.33438
Microsoft · Windows Server 2025 (Server Core installation)
- affected 10.0.26100.0 – < 10.0.26100.33438
References
References1
- Windows Installer Elevation of Privilege Vulnerability (opens in a new tab)vendor-advisorypatch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-73723 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-69441)Record last updated .