CVE-2026-88186
8.8HighPublished 13 Oct 2026 · NVD status: Analyzed · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Impact
- Full C/I/A compromise
- Weakness
- CWE-122, CWE-190
Impact
Remote attackers can execute arbitrary code with the privileges of the local user if a user opens a malicious document. The attack requires user interaction over the network or via an untrusted file.
Root cause
An integer overflow triggers a heap-based buffer overflow during document parsing in Microsoft Office Word.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Fix & remediation
Install the security update specified in the MSRC advisory for Microsoft Word; block untrusted Word attachments at the email perimeter and ensure Protected View is enforced if patching must wait.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.