CVE-2026-108443
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-193
Impact
Remote attackers can execute arbitrary code on the victim's system, but they require a user to open a malicious document. No prior privileges or network access are needed.
Root cause
An off-by-one memory error (CWE-193) exists 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
Apply the official security update from Microsoft for Microsoft Word as specified in the advisory; until patched, block untrusted Word documents at email gateways and open external files only in Protected View.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.