Local privilege escalation via graphics heap overflow
Published Jul 8, 2025 · Updated Feb 26, 2026
Heap-based buffer overflow in Microsoft Graphics Component across affected Windows releases allows local users to elevate privileges. Microsoft identifies related integer-underflow and shared-resource race weaknesses but has not disclosed the code-level locus or operation that overwrites the heap. Exploitation requires existing low-privileged local access and high-complexity race conditions, but no separate user interaction.
Summary
What happened
Heap-based buffer overflow in Microsoft Graphics Component across affected Windows releases allows local users to elevate privileges. Microsoft identifies related integer-underflow and shared-resource race weaknesses but has not disclosed the code-level locus or operation that overwrites the heap. Exploitation requires existing low-privileged local access and high-complexity race conditions, but no separate user interaction.
The record
- CVE
- CVE-2025-49744
- Published
- Jul 8, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-362, CWE-122, CWE-191, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 8, 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 <10.0.10240.21073
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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