CVE-2026-108429
8.8HighPublished 15 Oct 2026 · NVD status: Awaiting Analysis · 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
Impact
Remote attackers can execute arbitrary code on the victim's system, but they need a local user to open a malicious Word file. The code runs with the privileges of the active Word user.
Root cause
A heap-based buffer overflow flaw in Microsoft Office Word allows memory corruption when parsing malformed files.
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 latest Microsoft Office security updates from MSRC once available. Until patched, block untrusted Word documents at email gateways and instruct users not to open unexpected attachments.
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.