CVE-2023-3991

Name: CVE-2023-3991
Creator: NVD / NIST
Published: 2023-10-16T10:15:11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.43%

Last modified Jun 17, 2026

CVE-2023-3991 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An OS command injection vulnerability exists in the httpd iperfrun.cgi functionality of FreshTomato 2023.3. A specially crafted HTTP request can lead to arbitrary command execution. EPSS estimates a 2.43% chance of exploitation in the next 30 days.

Description

An OS command injection vulnerability exists in the httpd iperfrun.cgi functionality of FreshTomato 2023.3. A specially crafted HTTP request can lead to arbitrary command execution. An attacker can send an HTTP request to trigger this vulnerability.

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

2.43%

82.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Freshtomato	Freshtomato	2023.3

References

https://govtech-csg.github.io/security-advisories/2023/10/16/CVE-2023-3991.htmlThird Party Advisory
https://govtech-csg.github.io/security-advisories/2023/10/16/CVE-2023-3991.htmlThird Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2023-3991?

How severe is CVE-2023-3991?

CVE-2023-3991 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.43% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3991?

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-2023-3991?

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

Scan your code now

Source: NVD / NIST