CVE-2023-47539

Name: CVE-2023-47539
Creator: NVD / NIST
Published: 2025-03-18T14:15:37.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.07%

Last modified Jun 17, 2026

CVE-2023-47539 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An improper access control vulnerability in FortiMail version 7.4.0 configured with RADIUS authentication and remote_wildcard enabled may allow a remote unauthenticated attacker to bypass admin login via a crafted HTTP request.. EPSS estimates a 1.07% chance of exploitation in the next 30 days.

Description

An improper access control vulnerability in FortiMail version 7.4.0 configured with RADIUS authentication and remote_wildcard enabled may allow a remote unauthenticated attacker to bypass admin login via a crafted HTTP request.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.07%

60.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Fortinet	Fortimail	7.4.0

References

https://fortiguard.com/psirt/FG-IR-23-439Vendor Advisory

Timeline

Published: Mar 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-47539?

How severe is CVE-2023-47539?

CVE-2023-47539 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.

How do I fix CVE-2023-47539?

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-2023-47539?

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

Scan your code now

Source: NVD / NIST