# CVE-2026-69673: Windows Update privilege escalation via symbolic link following

Source: https://junglewise.ai/threats/cve-2026-69673-improper-link-resolution-before-file-access-link-following-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-69673 · Severity: high · CVSS 7.8 · Published 2026-10-13

Windows Update contains a symbolic link following vulnerability that allows an authenticated local attacker to escalate privileges on a Windows system. An attacker with local access could exploit this to gain elevated system permissions and take complete control of the affected machine.

Technologies: [Microsoft Windows Update](https://junglewise.ai/threats/technologies/microsoft-windows-update). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-69673 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69673 being exploited in the wild.

**How severe is CVE-2026-69673?** High severity, with a CVSS score of 7.8, published 13 October 2026.

**Which products and versions are affected?** Microsoft Windows Update.

**Is there a fix for CVE-2026-69673?** 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-2026-69673 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-69673?** Check whether you run Microsoft Windows Update. 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

The Windows Update component fails to properly resolve symbolic links before accessing files, enabling a local privilege escalation attack. An authorized user with local access can craft a malicious symbolic link to redirect file operations to sensitive system resources, allowing execution of code with elevated privileges.

## Affected products

- Microsoft Windows Update

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69673](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69673)

## Related threats

- [Windows Update use after free privilege escalation](https://junglewise.ai/threats/cve-2026-96323-use-after-free-in-windows-update-allows-an-authorized-attacker-to)
- [Windows Update out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-69999-out-of-bounds-read-in-windows-update-allows-an-authorized)
- [Windows Update untrusted search path privilege escalation](https://junglewise.ai/threats/cve-2026-69733-untrusted-search-path-in-windows-update-allows-an-authorized)
- [Windows Update heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-69633-heap-based-buffer-overflow-in-windows-update-allows-an-authorized)