Unauthenticated privilege escalation via out-of-bounds read
Published Nov 26, 2025 · Updated Feb 26, 2026
Out-of-bounds read in Microsoft Azure Application Gateway allows remote attackers to elevate privileges over a network. The service reads beyond a memory buffer boundary, but Microsoft has not disclosed the affected request-processing locus or triggering input. No authentication or user interaction is required, and successful exploitation grants elevated privileges within the managed gateway service.
Summary
What happened
Out-of-bounds read in Microsoft Azure Application Gateway allows remote attackers to elevate privileges over a network. The service reads beyond a memory buffer boundary, but Microsoft has not disclosed the affected request-processing locus or triggering input. No authentication or user interaction is required, and successful exploitation grants elevated privileges within the managed gateway service.
The record
- CVE
- CVE-2025-64656
- Published
- Nov 26, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Azure Application Gateway
- Classifications
- CWE-125, 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?
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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