CVE-2025-64657

CRITICAL
Published Nov 26, 2025 Modified Feb 13, 2026 CWE-787

Description

Stack-based buffer overflow in Azure Application Gateway allows an unauthorized attacker to elevate privileges over a network.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
microsoft azure_application_gateway

References

Frequently Asked Questions

What is CVE-2025-64657? +
Stack-based buffer overflow in Azure Application Gateway allows an unauthorized attacker to elevate privileges over a network. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-64657? +
CVE-2025-64657 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-64657? +
CVE-2025-64657 affects products from microsoft, specifically: azure_application_gateway. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-64657? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2025-64657 — free, no signup required.

Start Free Scan