Remote code execution via heap buffer overflow
Published Sep 8, 2026 · Updated Sep 9, 2026
Heap-based buffer overflow in Microsoft Windows Media Foundation allows remote attackers to execute code through crafted media content. Microsoft identifies neither the affected parser or function nor the incorrect operation that overruns its heap allocation. Exploitation requires user interaction to process attacker-controlled media, after which code runs in the affected process context.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows Media Foundation allows remote attackers to execute code through crafted media content. Microsoft identifies neither the affected parser or function nor the incorrect operation that overruns its heap allocation. Exploitation requires user interaction to process attacker-controlled media, after which code runs in the affected process context.
The record
- CVE
- CVE-2026-62744
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-122, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 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=10.0.26100.0 <10.0.26100.33438
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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