CVE-2021-44529Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via injection

Published Dec 8, 2021 · Updated Aug 4, 2026

A code injection vulnerability in Ivanti Endpoint Manager Cloud Service Appliance 4.6.0-512 allows remote attackers to execute arbitrary code via a network request. The vulnerable CSA input is processed as executable code instead of being safely constrained, allowing attacker-controlled instructions to run with the limited nobody account. No authentication or user interaction is required; exploitation can expose, alter, or interrupt appliance services, and CISA lists the flaw as exploited in the wild.

CVSS severity9.8
Critical
EPSS probability99.11%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A code injection vulnerability in Ivanti Endpoint Manager Cloud Service Appliance 4.6.0-512 allows remote attackers to execute arbitrary code via a network request. The vulnerable CSA input is processed as executable code instead of being safely constrained, allowing attacker-controlled instructions to run with the limited nobody account. No authentication or user interaction is required; exploitation can expose, alter, or interrupt appliance services, and CISA lists the flaw as exploited in the wild.

The record

CVE
CVE-2021-44529
Published
Dec 8, 2021
Updated
Aug 4, 2026
Vendor
Ivanti
Product
Ivanti Endpoint Manager Cloud Service Appliance
Classifications
CWE-94, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2024Exploitation reportedCISA Known Exploited Vulnerability listing
  3. Aug 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.6.0-512

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ivanti · Ivanti Endpoint Manager Cloud Service Applianceversion=4.6.0-512
Ivanti · Ivanti Cloud Services Applianceversion=0 <=4.6_patch_512

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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