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CVE-2026-103577

Опубликовано: 13 окт. 2026
Источник: msrc
CVSS3: 7.5
EPSS Низкий

Описание

Microsoft QUIC Security Feature Bypass Vulnerability

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

FAQ

According to the CVSS metric, the attack vector is network (AV:N), privilege required is none (PR:N), and user interaction is none (UI:N). What is the target used in the context of the security feature bypass?

An attacker without existing privileges can remotely bypass authentication and obtain a successful login without additional user interaction.

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?

Successful exploitation of this vulnerability requires an attacker to have a deep understanding of the system. Successful exploitation is not guaranteed and depends on a combination of factors that might include the environment, system configuration, and the presence of additional security measures.

Обновления

ПродуктСтатьяОбновление
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows 11 Version 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows Server 2025
Windows Server 2025 (Server Core installation)
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems

Показывать по

Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Less Likely

EPSS

Процентиль: 48%
0.00574
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
nvd
26 дней назад

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

CVSS3: 7.5
github
26 дней назад

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

EPSS

Процентиль: 48%
0.00574
Низкий

7.5 High

CVSS3