Quick answers
- Is CVE-2026-118126 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-118126 being exploited in the wild.
- How severe is CVE-2026-118126?
- High severity, with a CVSS score of 7.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Message Queuing.
- Is there a fix for CVE-2026-118126?
- 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-2026-118126 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-118126?
- Check whether you run Microsoft Windows Message Queuing. 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 Message Queuing that allows an authorized local attacker to escalate privileges. The vulnerability requires an attacker to already have local access to the system. Exploitation could result in elevation to system or higher privileges, potentially leading to complete system compromise.
Affected products
- Microsoft Windows Message Queuing
Timeline
- 2026-11-10: disclosed