Local privilege escalation via use-after-free
Published Feb 10, 2026 · Updated Feb 10, 2026
Use-after-free in Microsoft Graphics Component on affected Windows releases allows local users to elevate privileges through user interaction. Microsoft identifies the memory-lifetime error but has not disclosed the specific graphics object, code locus, or operation that accesses it after release. Exploitation requires existing low-privileged access and interaction by another user, and successful exploitation grants elevated control over the local system.
Summary
What happened
Use-after-free in Microsoft Graphics Component on affected Windows releases allows local users to elevate privileges through user interaction. Microsoft identifies the memory-lifetime error but has not disclosed the specific graphics object, code locus, or operation that accesses it after release. Exploitation requires existing low-privileged access and interaction by another user, and successful exploitation grants elevated control over the local system.
The record
- CVE
- CVE-2026-21235
- Published
- Feb 10, 2026
- Updated
- Feb 10, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 10, 2026CVE publishedPublication date reported by the CVE source.
- Feb 10, 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=10.0.17763.0 <10.0.17763.8389
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.
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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