Quick answers
- Is CVE-2026-105515 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-105515 being exploited in the wild.
- How severe is CVE-2026-105515?
- High severity, with a CVSS score of 7.5, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Message Queuing.
- Is there a fix for CVE-2026-105515?
- 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-2026-105515 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-105515?
- 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 buffer over-read in Windows Message Queuing allows an attacker to read beyond allocated memory boundaries by sending malicious network packets. The vulnerability is triggered remotely without authentication, leading to denial of service via service crash or memory corruption. A fix is available from Microsoft.
Affected products
- Microsoft Windows Message Queuing
Timeline
- 2026-11-10: disclosed