CVE-2026-103577

HighCVSS 7.5/10Last modified Oct 13, 2026

Description

Insecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H

Weakness enumeration

CWE-453

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 13, 2026
NVD status
Undergoing Analysis

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CVE-2026-103577: High severity, CVSS 7.5 | Vulnix