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CVE-2026-21261

Опубликовано: 10 фев. 2026
Источник: msrc
CVSS3: 5.5
EPSS Низкий

Описание

Microsoft Excel Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

FAQ

Is the Preview Pane an attack vector for this vulnerability?

No, the Preview Pane is not an attack vector.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

An attacker must send a user a malicious Office file and convince them to open it.

What type of information could be disclosed by this vulnerability?

An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.

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 for Mac 2021
Microsoft Office LTSC 2021 for 64-bit editions
-
Microsoft Office LTSC 2021 for 32-bit editions
-

Показывать по

Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Less Likely

EPSS

Процентиль: 8%
0.00027
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
nvd
около 2 месяцев назад

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVSS3: 5.5
github
около 2 месяцев назад

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVSS3: 5.5
fstec
около 2 месяцев назад

Уязвимость редактора электронных таблиц Microsoft Excel пакетов программ Microsoft Office и Microsoft 365 Apps for Enterprise, позволяющая нарушителю раскрыть защищаемую информацию

EPSS

Процентиль: 8%
0.00027
Низкий

5.5 Medium

CVSS3