CVE-2021-44529

Name: CVE-2021-44529
Creator: NVD / NIST
Published: 2021-12-08T22:15:10.163+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.11%

Last modified Jun 17, 2026

CVE-2021-44529 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A code injection vulnerability in the Ivanti EPM Cloud Services Appliance (CSA) allows an unauthenticated user to execute arbitrary code with limited permissions (nobody).. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.11% chance of exploitation in the next 30 days.

Description

A code injection vulnerability in the Ivanti EPM Cloud Services Appliance (CSA) allows an unauthenticated user to execute arbitrary code with limited permissions (nobody).

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

99.11%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Apr 15, 2024.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ivanti	Endpoint Manager Cloud Services Appliance	<= 4.5
Ivanti	Endpoint Manager Cloud Services Appliance	4.6

References

http://packetstormsecurity.com/files/166383/Ivanti-Endpoint-Manager-CSA-4.5-4.6-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/170590/Ivanti-Cloud-Services-Appliance-CSA-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
https://forums.ivanti.com/s/article/SA-2021-12-02Mitigation, Patch, Vendor Advisory
http://packetstormsecurity.com/files/166383/Ivanti-Endpoint-Manager-CSA-4.5-4.6-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/170590/Ivanti-Cloud-Services-Appliance-CSA-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
https://forums.ivanti.com/s/article/SA-2021-12-02Mitigation, Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-44529US Government Resource

Timeline

Published: Dec 8, 2021
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-44529?

A code injection vulnerability in the Ivanti EPM Cloud Services Appliance (CSA) allows an unauthenticated user to execute arbitrary code with limited permissions (nobody).

How severe is CVE-2021-44529?

CVE-2021-44529 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.11% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2021-44529?

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-2021-44529?

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

Scan your code now

Source: NVD / NIST