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CVE-2026-21259

Опубликовано: 10 фев. 2026
Источник: msrc
CVSS3: 7.8
EPSS Низкий

Описание

Microsoft Excel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.

FAQ

What privileges could be gained by an attacker who successfully exploited the vulnerability?

An attacker who successfully exploited this vulnerability could gain administrator privileges.

Is the Preview Pane an attack vector for this vulnerability?

No, the Preview Pane is not an attack vector.

Обновления

ПродуктСтатьяОбновление
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2016 (64-bit edition)
Office Online Server
Microsoft Office 2019 for 32-bit editions
-
Microsoft Office 2019 for 64-bit editions
-
Microsoft 365 Apps for Enterprise for 32-bit Systems
-
Microsoft 365 Apps for Enterprise for 64-bit Systems
-
Microsoft Office LTSC 2021 for 64-bit editions
-
Microsoft Office LTSC 2021 for 32-bit editions
-
Microsoft Office LTSC 2024 for 32-bit editions
-

Показывать по

Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Less Likely

EPSS

Процентиль: 7%
0.00027
Низкий

7.8 High

CVSS3

Связанные уязвимости

CVSS3: 7.8
nvd
около 2 месяцев назад

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.

CVSS3: 7.8
github
около 2 месяцев назад

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.

CVSS3: 7.8
fstec
около 2 месяцев назад

Уязвимость пакетов программ Microsoft Office, Excel и 365 Apps for Enterprise, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю повысить свои привилегии

EPSS

Процентиль: 7%
0.00027
Низкий

7.8 High

CVSS3