Description

Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.

Related CPE's

a

microsoft

365_apps

2

a

microsoft

office_long_term_servicing_channel

6

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20949

Vendor Advisory

Weaknesses

[email protected]

Primary
CWE-284

CVSS impact metrics

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.8 · High

Information

Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2026-01-13T18:16:22.487Z

3 days ago

Last modified

2026-01-16T16:20:58.787Z

2 hours ago