Quick answers
- Is CVE-2026-96026 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96026 being exploited in the wild.
- How severe is CVE-2026-96026?
- High severity, with a CVSS score of 7, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Installer.
- Is there a fix for CVE-2026-96026?
- 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-2026-96026 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-96026?
- Check whether you run Microsoft Windows Installer. 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 vulnerability exists in Windows Installer's memory handling. An authorized local attacker can trigger this flaw to escalate privileges, gaining elevated system access. The attack vector is local and requires pre-existing user authentication on the target system.
Affected products
- Microsoft Windows Installer
Timeline
- 2026-11-10: disclosed