Local privilege escalation via use-after-free
Published Jun 9, 2026 · Updated Jun 9, 2026
Use-after-free in Microsoft Graphics Component across affected Windows releases allows local users to elevate privileges. Microsoft has not disclosed the freed object, responsible function, or input sequence that causes the component to reuse stale memory. Exploitation requires existing low-privilege local access and grants control at a higher privilege level without user interaction.
Summary
What happened
Use-after-free in Microsoft Graphics Component across affected Windows releases allows local users to elevate privileges. Microsoft has not disclosed the freed object, responsible function, or input sequence that causes the component to reuse stale memory. Exploitation requires existing low-privilege local access and grants control at a higher privilege level without user interaction.
The record
- CVE
- CVE-2026-42986
- Published
- Jun 9, 2026
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 9, 2026CVE publishedPublication date reported by the CVE source.
- Jun 9, 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 <10.0.17763.8880
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.
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Technologies
Your stack
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Your stack
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