CVE-2025-57740

Description

An Heap-based Buffer Overflow vulnerability [CWE-122] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below, 7.0 all versions, 6.4 all versions; FortiPAM version 1.5.0, version 1.4.2 and below, 1.3 all versions, 1.2 all versions, 1.1 all versions, 1.0 all versions and FortiProxy version 7.6.2 and below, version 7.4.3 and below, 7.2 all versions, 7.0 all versions RDP bookmark connection may allow an authenticated user to execute unauthorized code via crafted requests.

CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-122 CWE-122

Affected Products

Vendor	Product	Versions
fortinet	fortiproxy	7.0.0 — 7.4.4
fortinet	fortiproxy	7.6.0 — 7.6.3
fortinet	fortipam	1.0.0 — 1.4.3
fortinet	fortipam	All
fortinet	fortios	6.4.0 — 7.2.11
fortinet	fortios	7.4.0 — 7.4.8
fortinet	fortios	7.6.0 — 7.6.3

References

Advisories & Patches

https://fortiguard.fortinet.com/psirt/FG-IR-25-756

Frequently Asked Questions

What is CVE-2025-57740? +

An Heap-based Buffer Overflow vulnerability [CWE-122] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below, 7.0 all versions, 6.4 all versions; FortiPAM version 1.5.0, version 1.4.2 and below, 1.3 all versions, 1.2 all versions, 1.1 all versions, 1.0 all versions and FortiProxy version 7.6.2 and below, version 7.4.3 and below, 7.2 all versions, 7.0 all versions RDP bookmark connection may allow an authenticated user to execute unauthorized code via crafted requests. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-57740? +

CVE-2025-57740 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-57740? +

CVE-2025-57740 affects products from fortinet, specifically: fortios, fortipam, fortiproxy. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-57740? +

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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