SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2026-45460

Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.

MEDIUM 4.7EPSS 0.37%

Does this matter?

Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own.

Description

Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVSS 3.1
4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
0.37% probability · 30th percentile
CISA KEV
Not listed
Weakness
CWE-126
Affected
microsoft/365 apps · microsoft/365 copilot · microsoft/microsoft 365 · microsoft/office 2019 · microsoft/office 2021 · microsoft/office 2024
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.