CVE-2026-42971Windows Push Notification Information Disclosure Vulnerability
- 5.5MediumCVSS base score
- 0.46%Exploitation in 30 daysEPSS · top 60% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
Timeline
ID reserved
By microsoft
- 40 days later
· 40 days later
Published
- 5 months later
· 5 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 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.46% · top 60% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.9234
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.8880
Microsoft · Windows 10 Version 21H2
- affected 10.0.19044.0 – < 10.0.19044.7417
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.7417
Microsoft · Windows 11 version 23H2
- affected 10.0.22631.0 – < 10.0.22631.7219
Microsoft · Windows 11 Version 23H2
- affected 10.0.22631.0 – < 10.0.22631.7219
Microsoft · Windows 11 Version 24H2
- affected 10.0.26100.0 – < 10.0.26100.8655
Microsoft · Windows 11 Version 25H2
- affected 10.0.26200.0 – < 10.0.26200.8655
Microsoft · Windows 11 version 26H1
- affected 10.0.28000.0 – < 10.0.28000.2269
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.9234
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.9234
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.8880
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.8880
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.5256
Microsoft · Windows Server 2025
- affected 10.0.26100.0 – < 10.0.26100.32995
Microsoft · Windows Server 2025 (Server Core installation)
- affected 10.0.26100.0 – < 10.0.26100.32995
References
References1
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-2026-35731 (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-2026-42971)Record last updated .