Quick answers
- Is CVE-2026-97781 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-97781 being exploited in the wild.
- How severe is CVE-2026-97781?
- High severity, with a CVSS score of 8.8, published 13 October 2026.
- Which products and versions are affected?
- Microsoft Office OneNote.
- Is there a fix for CVE-2026-97781?
- 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-2026-97781 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-97781?
- Check whether you run Microsoft 365 Apps or Microsoft Office OneNote. 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
The vulnerability is a command injection flaw in Microsoft Office OneNote that fails to properly neutralize special elements in command constructs. An attacker can exploit this via network attack vector with minimal complexity; user interaction (opening a crafted file) is required. Successful exploitation results in arbitrary code execution in the context of the affected user.
Affected products
- Microsoft Office OneNote
Timeline
- 2026-10-13: disclosed