CVE-2021-44529: Ivanti Endpoint Manager Cloud Service Appliance (EPM CSA) Code Injection Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on , 838 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 99.1%
EPSS score, percentile 99.9 of all scored records
- How severe?
- 9.8 Critical
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA deadline . Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- 4.6.0-512
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: .
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://forums.ivanti.com/s/article/SA-2021-12-02?language=en_US
- https://nvd.nist.gov/vuln/detail/CVE-2021-44529
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | 4.6.0-512 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
About this vulnerability
Ivanti Endpoint Manager Cloud Service Appliance (EPM CSA) contains a code injection vulnerability that allows an unauthenticated user to execute malicious code with limited permissions (nobody).
Summary: CISA's KEV catalog, as of .
- CISA added CVE-2021-44529 to its Known Exploited Vulnerabilities (KEV) catalog on 25 Mar 2024.
- CISA marks it as known to be used in ransomware campaigns.
- The due date CISA sets for the required action is 15 Apr 2024.
- The CVE record was published on 8 Dec 2021, 838 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 99.1% (percentile 99.9), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of . About the data.
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).
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
Weakness
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| Added to CISA KEV | |
| CISA due date for the required action | |
| CVE record last updated |
References
More exploited Ivanti vulnerabilities
- CVE-2026-104935: Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
- CVE-2026-10520: Ivanti Sentry OS Command Injection Vulnerability
- CVE-2026-6973: Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability
- CVE-2026-1340: Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability
- CVE-2026-1603: Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
- CVE-2026-1281: Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability