Code execution via Miracast heap buffer overflow
Published Jul 8, 2025 · Updated Feb 13, 2026
Heap-based buffer overflow in Windows Miracast Wireless Display allows remote attackers to execute code over an adjacent network. Microsoft has not disclosed the vulnerable routine or the malformed Miracast data operation that overruns the heap buffer. Exploitation requires user interaction and adjacent-network reachability; successful exploitation executes code in the affected Windows context.
Summary
What happened
Heap-based buffer overflow in Windows Miracast Wireless Display allows remote attackers to execute code over an adjacent network. Microsoft has not disclosed the vulnerable routine or the malformed Miracast data operation that overruns the heap buffer. Exploitation requires user interaction and adjacent-network reachability; successful exploitation executes code in the affected Windows context.
The record
- CVE
- CVE-2025-49691
- Published
- Jul 8, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-122, T1203
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 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.
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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