CVE-2021-44079

Name: CVE-2021-44079
Creator: NVD / NIST
Published: 2021-11-22T07:15:07.017+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.29%

Last modified Jun 17, 2026

CVE-2021-44079 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In the wazuh-slack active response script in Wazuh 4.2.x before 4.2.5, untrusted user agents are passed to a curl command line, potentially resulting in remote code execution.. EPSS estimates a 3.29% chance of exploitation in the next 30 days.

Description

In the wazuh-slack active response script in Wazuh 4.2.x before 4.2.5, untrusted user agents are passed to a curl command line, potentially resulting in remote code execution.

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

3.29%

86.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Wazuh	Wazuh	>= 4.2.0, < 4.2.5

References

https://github.com/wazuh/wazuh/issues/10858Exploit, Issue Tracking, Mitigation, Third Party Advisory
https://github.com/wazuh/wazuh/issues/10858#issuecomment-991118254Issue Tracking, Patch, Third Party Advisory
https://github.com/wazuh/wazuh/pull/10809Patch, Third Party Advisory
https://github.com/wazuh/wazuh/issues/10858Exploit, Issue Tracking, Mitigation, Third Party Advisory
https://github.com/wazuh/wazuh/issues/10858#issuecomment-991118254Issue Tracking, Patch, Third Party Advisory
https://github.com/wazuh/wazuh/pull/10809Patch, Third Party Advisory

Timeline

Published: Nov 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44079?

In the wazuh-slack active response script in Wazuh 4.2.x before 4.2.5, untrusted user agents are passed to a curl command line, potentially resulting in remote code execution.

How severe is CVE-2021-44079?

CVE-2021-44079 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.29% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44079?

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-2021-44079?

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

Scan your code now

Source: NVD / NIST