{"id":"CVE-2026-103577","title":"Insecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.","summary":"Insecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H","cwe":["CWE-453"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T19:25:38.150","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103577","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-103577","label":"secure@microsoft.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T19:43:28.904Z","slug":"CVE-2026-103577","body":"## Overview\n\nInsecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}