PT-2026-32879 · Microsoft · 365 Apps For Enterprise+1

Ghirmay Desta · Published 2026-04-14 · Updated 2026-05-10 · CVE-2026-33115

Positive Technologies (AI Summary)

CVSS v3.1

8.4

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft 365 Apps for Enterprise versions 16.0.1 through 16.0.1

Description A use-after-free issue in Microsoft Office Word allows an unauthorized attacker to execute code locally. This occurs when a user is tricked into opening a malicious document that triggers memory corruption, leading to remote code execution.

Recommendations Update Microsoft 365 Apps for Enterprise to a version newer than 16.0.1.

Fix

RCE

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2026-05666

CVE-2026-33115

Affected Products

365 Apps For Enterprise

Office Word

References · 6

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33115 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05666 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-33115 · Security Note
• https://twitter.com/CVEnew/status/2044358558662226288 · Twitter Post
• https://reddit.com/r/crowdstrike/comments/1t9dzs4/crowdstrike_falcon_last_patch_tuesday_cve · Reddit Post
• https://twitter.com/RedHornet_Intel/status/2044118470808289725 · Twitter Post