CVE-2023-25603

Name: CVE-2023-25603
Creator: NVD / NIST
Published: 2023-11-14T19:15:19.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2023-25603 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. A permissive cross-domain policy with untrusted domains vulnerability in Fortinet FortiADC 7.1.0 - 7.1.1, FortiDDoS-F 6.3.0 - 6.3.4 and 6.4.0 - 6.4.1 allow an unauthorized attacker to carry out privileged actions and retrieve sensitive information via crafted web requests.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

A permissive cross-domain policy with untrusted domains vulnerability in Fortinet FortiADC 7.1.0 - 7.1.1, FortiDDoS-F 6.3.0 - 6.3.4 and 6.4.0 - 6.4.1 allow an unauthorized attacker to carry out privileged actions and retrieve sensitive information via crafted web requests.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

0.40%

31.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-942

Affected Software

Vendor	Product	Versions
Fortinet	Fortiadc	7.1.0
Fortinet	Fortiadc	7.1.1
Fortinet	Fortiddos-F	>= 6.3.0, <= 6.3.4
Fortinet	Fortiddos-F	6.4.0
Fortinet	Fortiddos-F	6.4.1

References

https://fortiguard.com/psirt/FG-IR-22-518Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-518Vendor Advisory

Timeline

Published: Nov 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-25603?

How severe is CVE-2023-25603?

CVE-2023-25603 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2023-25603?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-25603?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST