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CVE-2026-21513

Опубликовано: 10 фев. 2026
Источник: msrc
CVSS3: 8.8
EPSS Низкий

Описание

MSHTML Framework Security Feature Bypass Vulnerability

Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.

FAQ

According to the CVSS metric, the attack vector is user interaction is required (UI:R). How could an attacker exploit this security feature bypass vulnerability?

An attacker could exploit this vulnerability by convincing a user to open a malicious HTML file or shortcut (.lnk) file delivered through a link, email attachment, or download. The specially crafted file manipulates browser and Windows Shell handling, causing the content to be executed by the operating system. This allows the attacker to bypass security features and potentially achieve code execution.

What kind of security feature could be bypassed by successfully exploiting this vulnerability?

This update address a vulnerability that bypasses prompts when executing a file.

Обновления

ПродуктСтатьяОбновление
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016 (Server Core installation)
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems

Показывать по

Возможность эксплуатации

Publicly Disclosed

Yes

Exploited

Yes

Latest Software Release

Exploitation Detected

EPSS

Процентиль: 92%
0.07976
Низкий

8.8 High

CVSS3

Связанные уязвимости

CVSS3: 8.8
nvd
около 1 месяца назад

Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.

CVSS3: 8.8
github
около 1 месяца назад

Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.

CVSS3: 8.8
fstec
около 1 месяца назад

Уязвимость компонента MSHTML операционных систем Windows, позволяющая нарушителю обойти функции безопасности

EPSS

Процентиль: 92%
0.07976
Низкий

8.8 High

CVSS3