CVEvulnerability
CVE-2026-62889
8.1 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-11
- Last modified
- 2026-08-16
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-415
Description
Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
Affected configurations
• microsoft windows 10 1607 (< 10.0.14393.9418)
• microsoft windows 10 1809 (< 10.0.17763.9115)
• microsoft windows 10 21h2 (< 10.0.19044.7663)
• microsoft windows 10 22h2 (< 10.0.19045.7663)
• microsoft windows 11 23h2 (< 10.0.22631.7517)
• microsoft windows 11 24h2 (< 10.0.26100.9106)
• microsoft windows 11 25h2 (< 10.0.26200.9106)
• microsoft windows 11 26h1 (< 10.0.28000.2704)
• microsoft windows server 2012
• microsoft windows server 2012 r2
• microsoft windows server 2016 (< 10.0.14393.9418)
• microsoft windows server 2019 (< 10.0.17763.9115)
• microsoft windows server 2022 (< 10.0.20348.5440)
• microsoft windows server 2025 (< 10.0.26100.33222)
Related
Weakness · CWE (1)
- CWE-415 Double Free weakness
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62889 Patch, Vendor Advisory