Unauthenticated privilege escalation via stack buffer overflow
Published Nov 26, 2025 · Updated Feb 26, 2026
Stack-based buffer overflow in Microsoft Azure Application Gateway allows remote attackers to elevate privileges over the network. Microsoft identifies an out-of-bounds write on the process stack but has not disclosed the affected request field, parsing routine, or overwrite path. No authentication or user interaction is required; successful exploitation grants elevated privileges within the managed gateway service and can affect confidentiality, integrity, and availability.
Summary
What happened
Stack-based buffer overflow in Microsoft Azure Application Gateway allows remote attackers to elevate privileges over the network. Microsoft identifies an out-of-bounds write on the process stack but has not disclosed the affected request field, parsing routine, or overwrite path. No authentication or user interaction is required; successful exploitation grants elevated privileges within the managed gateway service and can affect confidentiality, integrity, and availability.
The record
- CVE
- CVE-2025-64657
- Published
- Nov 26, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Azure Application Gateway
- Classifications
- CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 26, 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?
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- Affected versionversion=-
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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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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