# CVE-2026-83949

## Summary

- **CVE ID:** CVE-2026-83949
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
- **CWE:** CWE-126
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 9, 2026

## Description

Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

## Affected Products

- Microsoft — Microsoft 365 Apps for Enterprise (16.0.1)
- Microsoft — Microsoft Office 2019 (19.0.0)
- Microsoft — Microsoft Office LTSC 2021 (16.0.1)
- Microsoft — Microsoft Office LTSC 2024 (16.0.0)
- Microsoft — Microsoft Word 2016 (16.0.1)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83949)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-09._