CVEvulnerability
CVE-2026-103577
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-13
- Last modified
- 2026-10-27
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H
- Weaknesses
- CWE-453
Description
Insecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.
Affected configurations
• microsoft windows 11 23h2 (< 10.0.22631.7652)
• microsoft windows 11 24h2 (< 10.0.26100.9711)
• microsoft windows 11 25h2 (< 10.0.26200.9711)
• microsoft windows 11 26h1 (< 10.0.28000.3231)
• microsoft windows 11 26h2 (< 10.0.26300.9711)
• microsoft windows server 2022 (< 10.0.20348.5761)
• microsoft windows server 2025 (< 10.0.26100.33650)
Related
Weakness · CWE (1)
- CWE-453 Insecure Default Variable Initialization weakness
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-103577 Patch, Vendor Advisory