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Critical· 9.8actively exploitedofficial fix available

CVE-2021-44529

This vulnerability allows an unauthenticated user to execute arbitrary code on the Ivanti EPM Cloud Services Appliance with limited permissions. It can lead to full compromise of the system and its data. The CVSS score is 9.8, indicating a critical risk.

publishedDec 8, 2021
last modifiedAug 4, 2026
sourcesNVD · CISA-KEV
severity · cvss
9.8
critical · how bad it is
exploitation · epss
99%
100th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 3, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Ivanti Endpoint Manager Cloud Services Appliance, including version 4.6, used by organizations to manage endpoints in the cloud.

02

Real-world impact

An attacker could run arbitrary code on the appliance, potentially gaining control over the system and accessing sensitive data.

03

Why this severity

The CVSS score of 9.8 reflects that the vulnerability is exploitable over the network, requires no authentication, and can lead to complete compromise of confidentiality, integrity, and availability.

04

What to do about it

official fix available
recommended steps
  1. 01Follow the vendor's mitigation instructions as documented.

CISA KEV required action

05

Timeline

  1. Dec 8, 2021 · Dec 8, 2021
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Mar 25, 2024 · Mar 25, 2024
    Confirmed exploited (CISA KEV)
    CISA added it to the Known Exploited Vulnerabilities catalog — attackers are using it in the wild.
  3. Apr 15, 2024 · Apr 15, 2024
    CISA remediation deadline
    Federal agencies are required to remediate by this date.
  4. Aug 4, 2026 · 2d ago
    Advisory updated
    The NVD record was last revised.
  5. Aug 4, 2026 · 2d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗CISA KEV catalog ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
CVE-2021-44529: This vulnerability allows an unauthenticated user to execute arbitrary · Vulnary