Stack-based Buffer Overflow in Azure Application Gateway by Microsoft
CVE-2025-64657

9.8CRITICAL

Key Information:

Vendor

Microsoft
Status
Azure App Gateway
Vendor
CVE Published:
26 November 2025

Badges

đź“° News Worthy

What is CVE-2025-64657?

A stack-based buffer overflow vulnerability exists in Azure Application Gateway, allowing unauthorized users to execute arbitrary code and potentially elevate their privileges over a network. This flaw could result in unauthorized data access and manipulation. Administrators are advised to implement the latest patches and monitor their systems for any unusual activity to mitigate the risks associated with this vulnerability.

Affected Version(s)

Azure App Gateway Unknown

News Articles

favicon imageCrowe

November 2025 Cybersecurity Threat Advisory | Crowe UAE

Stay ahead of cyber threats with in-depth analysis of critical vulnerabilities, major attacks, and expert recommendations from the November 17–23, 2025 Threat Advisory. Learn about CVEs, brute-force surges, and proactive defense for your organization.

1 week ago

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • đź“°

    First article discovered by Crowe

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-64657 : Stack-based Buffer Overflow in Azure Application Gateway by Microsoft