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CVE-2026-55133

Опубликовано: 14 июл. 2026
Источник: msrc
CVSS3: 7.8
EPSS Низкий

Описание

Microsoft OneNote Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code locally.

FAQ

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?

The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

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.

Обновления

ПродуктСтатьяОбновление
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 for Mac 2024
Microsoft Office 365 for Mac

Показывать по

Возможность эксплуатации

Publicly Disclosed

No

Exploited

No

Latest Software Release

Exploitation Less Likely

EPSS

Процентиль: 23%
0.00303
Низкий

7.8 High

CVSS3

Связанные уязвимости

CVSS3: 7.8
nvd
19 дней назад

Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code locally.

CVSS3: 7.8
github
19 дней назад

Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code locally.

EPSS

Процентиль: 23%
0.00303
Низкий

7.8 High

CVSS3