# CVE-2026-119951: Windows Deployment Services use-after-free code execution

Source: https://junglewise.ai/threats/cve-2026-119951-use-after-free-in-windows-deployment-services-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-2026-119951 · Severity: high · CVSS 8.1 · Published 2026-11-10

Windows Deployment Services contains a use-after-free vulnerability that allows an attacker to execute arbitrary code over the network without authentication. An exploit could enable attackers to compromise systems used for deploying Windows across enterprise networks, leading to widespread system compromise or malware installation.

Technologies: [Microsoft Windows Deployment Services](https://junglewise.ai/threats/technologies/windows-deployment-services). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-119951 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-119951 being exploited in the wild.

**How severe is CVE-2026-119951?** High severity, with a CVSS score of 8.1, published 10 November 2026.

**Which products and versions are affected?** Microsoft Windows Deployment Services.

**Is there a fix for CVE-2026-119951?** 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-2026-119951 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-119951?** Check whether you run Microsoft Windows Deployment Services. 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 memory corruption vulnerability exists in Windows Deployment Services, accessible over the network without requiring prior authentication. An attacker can craft a malicious network request to trigger the flaw and execute arbitrary code with the privileges of the Deployment Services process.

## Affected products

- Microsoft Windows Deployment Services

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119951](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119951)

## Related threats

- [Windows Deployment Services relative path traversal](https://junglewise.ai/threats/cve-2026-118213-relative-path-traversal-in-windows-deployment-services-allows-an)
- [Windows Deployment Services relative path traversal information disclosure](https://junglewise.ai/threats/cve-2026-113818-relative-path-traversal-in-windows-deployment-services-allows-an)
- [Windows Deployment Services privilege management information disclosure](https://junglewise.ai/threats/cve-2026-112977-improper-privilege-management-in-windows-deployment-services)
- [Windows Deployment Services heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-105558-heap-based-buffer-overflow-in-windows-deployment-services-allows)
- [Microsoft Windows Deployment Services race condition remote code execution](https://junglewise.ai/threats/cve-2026-88174-concurrent-execution-using-shared-resource-with-improper)