Quick answers
- Is CVE-2026-108453 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-108453 being exploited in the wild.
- How severe is CVE-2026-108453?
- Medium severity, with a CVSS score of 6.5, published 15 October 2026.
- Which products and versions are affected?
- Microsoft Office PowerPoint.
- Is there a fix for CVE-2026-108453?
- 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-2026-108453 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-108453?
- Check whether you run Microsoft Office PowerPoint. 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
An out-of-bounds read vulnerability exists in Microsoft Office PowerPoint's file parsing logic, allowing information disclosure through a network vector. The vulnerability requires user interaction to open a crafted presentation file. A successful exploit could leak memory contents, potentially exposing sensitive data without code execution or system compromise.
Affected products
- Microsoft Office PowerPoint
Timeline
- 2026-10-15: disclosed