CVE-2023-45586

Name: CVE-2023-45586
Creator: NVD / NIST
Published: 2024-05-14T17:15:24.56+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2023-45586 is a medium-severity vulnerability rated 5/10 on the CVSS scale. An insufficient verification of data authenticity vulnerability [CWE-345] in Fortinet FortiOS SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.12 & FortiProxy SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.13 allows an authenticated VPN user to send (but not receive) packets spoofing the IP of another user via crafted network packets.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

An insufficient verification of data authenticity vulnerability [CWE-345] in Fortinet FortiOS SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.12 & FortiProxy SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.13 allows an authenticated VPN user to send (but not receive) packets spoofing the IP of another user via crafted network packets.

Metrics

CVSS 3.1

5/10

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

EPSS Probability

0.29%

20.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fortinet	Fortiproxy	>= 2.0.0, <= 2.0.12
Fortinet	Fortiproxy	>= 7.0.0, < 7.0.14
Fortinet	Fortiproxy	>= 7.2.0, < 7.2.8
Fortinet	Fortiproxy	7.4.0
Fortinet	Fortiproxy	7.4.1
Fortinet	Fortios	>= 6.2.0, <= 6.2.16
Fortinet	Fortios	>= 6.4.0, <= 6.4.15
Fortinet	Fortios	>= 7.0.0, < 7.0.13
Fortinet	Fortios	>= 7.2.0, < 7.2.8
Fortinet	Fortios	7.4.0
Fortinet	Fortios	7.4.1

References

https://fortiguard.com/psirt/FG-IR-23-225Vendor Advisory
https://fortiguard.com/psirt/FG-IR-23-225Vendor Advisory

Timeline

Published: May 14, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45586?

How severe is CVE-2023-45586?

CVE-2023-45586 has a CVSS score of 5/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45586?

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-2023-45586?

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

Scan your code now

Source: NVD / NIST