CVE-2026-124229 | BDVDB-2026-404621 Detail

MicrosoftMicrosoft 365 Apps for Enterprise

Description#

Deserialization of untrusted data in Microsoft Office Excel allows an unauthorized attacker to execute code with a physical attack.

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: physical.

No public exploit known

6.6 Medium

Not available

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Insecure Deserialization

No specific action is recorded in the source data. Check the references for vendor guidance.

Vulnerable
>= 16.0.1 and < https://aka.ms/OfficeSecurityReleases
Fixed
https://aka.ms/OfficeSecurityReleases

Not available

6.6 Medium

CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).