Quick answers
- Is CVE-2026-118732 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-118732 being exploited in the wild.
- How severe is CVE-2026-118732?
- High severity, with a CVSS score of 8.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Office Excel.
- Is there a fix for CVE-2026-118732?
- 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-2026-118732 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-118732?
- Check whether you run Microsoft Office Excel. 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 use after free condition in Microsoft Office Excel's memory management allows remote code execution when processing a specially crafted Office file. The vulnerability can be triggered via network delivery of a malicious document without requiring user privileges beyond opening the file. Exploitation grants the attacker code execution in the context of the Excel process.
Affected products
- Microsoft Office Excel
Timeline
- 2026-11-10: disclosed