---
title: "CVE-2024-21887: Ivanti Connect Secure and Policy Secure Command Injection Vulnerability"
url: https://erroneo.us/security/cve/CVE-2024-21887/
description: "CVE-2024-21887 (Ivanti Connect Secure and Policy Secure): Exploited in the wild (CISA KEV). A command injection vulnerability in web components of Ivanti…"
type: vulnerability-record
section: "Security Digest"
date_published: 2024-01-12
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2024-21887"
kev: true
cvss: 9.1
epss: 0.99999
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2024-21887: Ivanti Connect Secure and Policy Secure Command Injection Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Ivanti Connect Secure and Policy Secure. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-01-10, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-01-22 ; treat that as the outer limit, not the target. CISA also lists it as known to be used in ransomware campaigns .
- EPSS 100.0% , percentile 100.0: FIRST’s model estimates a 100.0% chance of exploitation activity in the next 30 days, higher than 100.0% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (high (admin)). Exposure depends on who can log in.
- Editorial verdict: Act now. Ivanti Connect Secure Zero-Day Chain: Unauthenticated RCE — This chain was exploited as a zero-day by a suspected nation-state actor and then mass-exploited; any unpatched appliance should be assumed compromised, not just patched.

## What it is

A command injection vulnerability in web components of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) allows an authenticated administrator to send specially crafted requests and execute arbitrary commands on the appliance.

## Affected products (CVE record)

- Ivanti ICS: 9.1R18 <= 9.1R18, 22.6R2 <= 22.6R2
- Ivanti IPS: 9.1R18 <= 9.1R18, 22.6R1 <= 22.6R1

## Severity

- hackerone CVSS 3.0: 9.1 `CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2024-01-10; federal due date 2024-01-22. Known ransomware use: Known.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 100.00% probability of exploitation activity in the next 30 days; percentile 100.0.

## Sources

- [Listed in CISA KEV notes (forums.ivanti.com)](https://forums.ivanti.com/s/article/KB-CVE-2023-46805-Authentication-Bypass-CVE-2024-21887-Command-Injection-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US)
- [CVE.org record CVE-2024-21887](https://www.cve.org/CVERecord?id=CVE-2024-21887)
- [NVD entry CVE-2024-21887](https://nvd.nist.gov/vuln/detail/CVE-2024-21887)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21887)
- [forums.ivanti.com](https://forums.ivanti.com/s/article/CVE-2023-46805-Authentication-Bypass-CVE-2024-21887-Command-Injection-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US)
- [packetstormsecurity.com](http://packetstormsecurity.com/files/176668/Ivanti-Connect-Secure-Unauthenticated-Remote-Code-Execution.html)

---
Source page: https://erroneo.us/security/cve/CVE-2024-21887/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt