CVE-2026-50678 | BDVDB-2026-348203 Detail

MicrosoftMicrosoft 365 Apps for Enterprise

Description#

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

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

No public exploit known

6.6 Medium

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 41.2.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Memory Corruption

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

Not available

Not available

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