Quick answers
- Is CVE-2026-81952 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-81952 being exploited in the wild.
- How severe is CVE-2026-81952?
- High severity, with a CVSS score of 8.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Office Word.
- Is there a fix for CVE-2026-81952?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-81952 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-81952?
- Check whether you run Microsoft Office Word. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A heap-based buffer overflow exists in Microsoft Office Word that enables remote code execution. The vulnerability allows an attacker on the network to trigger the overflow condition, leading to arbitrary code execution with the privileges of the user running Word. No authentication is required; exploitation can occur by delivering a specially crafted document. The attack vector is network-based, and patches are available from Microsoft's Security Response Center.
Affected products
- Microsoft Office Word
Timeline
- 2026-09-08: disclosed