Microsoft Office Stack-based Buffer Overflow Vulnerability

A stack-based buffer overflow vulnerability exists in the parsing of RTF data in Microsoft Office and earlier allows an attacker to perform remote code execution.

Published 5 Oct 2026Updated 5 Oct 2026542 sources
CVSS 9.3 ✓ VERIFIED REFERENCE△ CISA KEV

What happened

A stack-based buffer overflow vulnerability exists in the parsing of RTF data in Microsoft Office and earlier allows an attacker to perform remote code execution.

Affected versions

Office: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references