Local privilege escalation via SSDP use-after-free race
Published Oct 14, 2025 · Updated Feb 26, 2026
Race condition in Microsoft Windows SSDP Service allows local users with low privileges to elevate privileges on affected Windows builds. Microsoft maps the flaw to improper synchronization and use-after-free, but has not disclosed the shared resource, code path, or operations that create the race window. Exploitation requires local low-privileged access, no user interaction, and winning a high-complexity race; success grants elevated control.
Summary
What happened
Race condition in Microsoft Windows SSDP Service allows local users with low privileges to elevate privileges on affected Windows builds. Microsoft maps the flaw to improper synchronization and use-after-free, but has not disclosed the shared resource, code path, or operations that create the race window. Exploitation requires local low-privileged access, no user interaction, and winning a high-complexity race; success grants elevated control.
The record
- CVE
- CVE-2025-59196
- Published
- Oct 14, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-362, CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 14, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.21161
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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