CVE-2026-97761
8.8HighPublished 13 Oct 2026 · NVD status: Analyzed · AI triage by gemini-3.8-flash
8.8High
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Impact
- Full C/I/A compromise
- Weakness
- CWE-121
Impact
Attackers can execute arbitrary code with the user's permissions over the network. They need a user to open a malicious Excel file.
Root cause
A stack-based buffer overflow occurs when Microsoft Office Excel processes untrusted spreadsheet data.
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 from the vendor advisory once identified; until patched, avoid opening untrusted or external Excel files.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
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NVD description
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.