CVE-2026-69964: Microsoft Streaming Service use after free privilege escalation

CVE-2026-69964 · Severity: high · CVSS 7 · Published 2026-10-13

Microsoft Streaming Service contains a use-after-free vulnerability that allows an authorized local user to escalate privileges on the system. An attacker with standard user access could exploit this flaw to gain administrative control, enabling actions such as system modification, data theft, or malware installation.

Technologies: Microsoft Streaming Service. Vendors: Microsoft.

Quick answers

Is CVE-2026-69964 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-69964 being exploited in the wild.
How severe is CVE-2026-69964?
High severity, with a CVSS score of 7, published 13 October 2026.
Which products and versions are affected?
Microsoft Streaming Service.
Is there a fix for CVE-2026-69964?
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-2026-69964 attacked?
It is attacked with local access, in a hosted service.
Am I affected by CVE-2026-69964?
Check whether you run Microsoft Streaming Service. 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 Microsoft Streaming Service, allowing an authenticated local attacker to escalate privileges. The vulnerability requires local access and a valid user account. Successful exploitation grants the attacker elevated (administrative) privileges on the affected system.

Affected products

  • Microsoft Streaming Service

Timeline

  • 2026-10-13: disclosed

References

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