# CVE-2026-116710: Microsoft Windows Message Queuing heap overflow

Source: https://junglewise.ai/threats/cve-2026-116710-heap-based-buffer-overflow-in-windows-message-queuing-allows-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-116710 · Severity: high · CVSS 8.1 · Published 2026-11-10

Windows Message Queuing is a service that allows applications to communicate asynchronously across a network. A heap buffer overflow vulnerability in this component allows an attacker to execute arbitrary code remotely without authentication, potentially compromising the entire system.

Technologies: [Microsoft Windows Message Queuing](https://junglewise.ai/threats/technologies/windows-message-queuing). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-116710 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-116710 being exploited in the wild.

**How severe is CVE-2026-116710?** High severity, with a CVSS score of 8.1, published 10 November 2026.

**Which products and versions are affected?** Microsoft Windows Message Queuing <UNKNOWN>.

**Is there a fix for CVE-2026-116710?** 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-2026-116710 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-116710?** Check whether you run Microsoft Windows Message Queuing at an affected version. 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 heap-based buffer overflow exists in Windows Message Queuing that can be triggered over the network without prior authentication. An attacker can exploit this vulnerability to execute arbitrary code with the privileges of the Message Queuing service, potentially gaining system-level compromise. The vulnerability is network-accessible and requires no user interaction.

## Affected products

- Microsoft Windows Message Queuing <UNKNOWN>

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-116710](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-116710)

## Related threats

- [Windows Message Queuing use after free in Queue Manager](https://junglewise.ai/threats/cve-2026-119967-use-after-free-in-windows-message-queuing-queue-manager-allows)
- [Windows Message Queuing double free](https://junglewise.ai/threats/cve-2026-119964-double-free-in-windows-message-queuing-allows-an-unauthorized)
- [Windows Message Queuing double free remote code execution](https://junglewise.ai/threats/cve-2026-119963-double-free-in-windows-message-queuing-allows-an-unauthorized)
- [Windows Message Queuing improper input validation DoS](https://junglewise.ai/threats/cve-2026-119848-improper-input-validation-in-windows-message-queuing-allows-an)
- [Windows Message Queuing privilege escalation via untrusted pointer dereference](https://junglewise.ai/threats/cve-2026-119833-untrusted-pointer-dereference-in-windows-message-queuing-allows)