CVE-2025-64656

CRITICAL

Published Nov 26, 2025 Modified Dec 8, 2025 CWE-125

Description

Out-of-bounds read in Application Gateway allows an unauthorized attacker to elevate privileges over a network.

CVSS v3.1 Score

9.4

CRITICAL

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

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
microsoft	azure_application_gateway	All

References

Advisories & Patches

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64656

Frequently Asked Questions

What is CVE-2025-64656? +

Out-of-bounds read in Application Gateway allows an unauthorized attacker to elevate privileges over a network. It has a CVSS v3.1 base score of 9.4 (CRITICAL).

How severe is CVE-2025-64656? +

CVE-2025-64656 has a CVSS v3.1 score of 9.4 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-64656? +

CVE-2025-64656 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-2025-64656? +

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.

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