Exploited CVEs / Ivanti / CVE-2021-44529
CVE-2021-44529
Ivanti Endpoint Manager Cloud Service Appliance (EPM CSA) Code Injection Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted, and the vulnerability is known to be used in ransomware campaigns. Federal agencies were required to remediate by 2024-04-15 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Ivanti Security Advisories, linked below.
Actively exploited Ivanti Endpoint Manager Cloud Service Appliance (EPM CSA) vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2024-03-25.
Risk summary
Updated July 26, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2021-44529
Ivanti Endpoint Manager Cloud Service Appliance contains a code injection that unauthenticated attackers can use to run malicious code, and it checks every red-flag box: Critical Severity at CVSS 9.8, a 99% EPSS score, KEV-confirmed exploitation (2024-03-25), and documented use in ransomware campaigns. The CSA exists to be internet-facing, brokering connections into internal endpoint management, which makes it a purpose-built bridgehead for intruders. Ivanti edge products have been under sustained attack, so assume constant probing.
Do this: Patch or retire EPM CSA appliances immediately and forensically review any that were exposed, since ransomware crews have weaponized this bug.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2021-44529
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2021-44529
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2024-04-15 (past due).
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Official fix for CVE-2021-44529
The authoritative fix and affected-version list are published by the vendor. Find the Endpoint Manager Cloud Service Appliance (EPM CSA) advisory on Ivanti Security Advisories.
Common questions about CVE-2021-44529
Is CVE-2021-44529 actively exploited?
Yes. CVE-2021-44529 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2024-03-25, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 99%. CISA also reports it is known to be used in ransomware campaigns.
What is the CISA deadline and required action for CVE-2021-44529?
CISA set the federal (BOD 22-01) remediation due date at 2024-04-15, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
What fixes CVE-2021-44529?
The authoritative fix is in the vendor advisory: see Ivanti Security Advisories for the patched Endpoint Manager Cloud Service Appliance (EPM CSA) versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2021-44529?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2021-44529's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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All Ivanti exploited CVEs on one page: Ivanti vulnerabilities actively exploited.
Authoritative references
Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.
