CVE-2021-40643

Name: CVE-2021-40643
Creator: NVD / NIST
Published: 2022-06-30T11:15:07.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.19%

Last modified Jun 17, 2026

CVE-2021-40643 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. EyesOfNetwork before 07-07-2021 has a Remote Code Execution vulnerability on the mail options configuration page. In the location of the "sendmail" application in the "cacti" configuration page (by default/usr/sbin/sendmail) it is possible to execute any command, which will be executed when we make a test of the configuration ("send test mail").. EPSS estimates a 2.19% chance of exploitation in the next 30 days.

Description

EyesOfNetwork before 07-07-2021 has a Remote Code Execution vulnerability on the mail options configuration page. In the location of the "sendmail" application in the "cacti" configuration page (by default/usr/sbin/sendmail) it is possible to execute any command, which will be executed when we make a test of the configuration ("send test mail").

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

2.19%

80.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Eyesofnetwork	Eyesofnetwork	< 2021-07-07

References

https://eyesofnetwork.comBroken Link
https://www.eyesofnetwork.com/en/news/vulnerabilite-cactiPatch, Vendor Advisory
https://eyesofnetwork.comBroken Link
https://www.eyesofnetwork.com/en/news/vulnerabilite-cactiPatch, Vendor Advisory

Timeline

Published: Jun 30, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40643?

How severe is CVE-2021-40643?

CVE-2021-40643 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40643?

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-2021-40643?

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

Scan your code now

Source: NVD / NIST