CVE-2023-23781

Name: CVE-2023-23781
Creator: NVD / NIST
Published: 2023-02-16T19:15:14.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2023-23781 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.19 and below SAML server configuration may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted XML files.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.19 and below SAML server configuration may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted XML files.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.70%

48.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fortinet	Fortiweb	>= 6.3.0, < 6.3.20
Fortinet	Fortiweb	>= 6.4.0, <= 6.4.2
Fortinet	Fortiweb	>= 7.0.0, < 7.0.2

References

https://fortiguard.com/psirt/FG-IR-22-151Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-151Vendor Advisory

Timeline

Published: Feb 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23781?

How severe is CVE-2023-23781?

CVE-2023-23781 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23781?

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-2023-23781?

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

Scan your code now

Source: NVD / NIST