SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-21887

Ivanti Connect Secure and Policy Secure Command Injection Vulnerability

KEVCRITICAL 9.1EPSS 100.0%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 22 January 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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.

CVSS 3.1
9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS
100.00% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 10 January 2024 · due 22 January 2024 · used in ransomware campaigns
Weakness
CWE-77
Affected
ivanti/connect secure · ivanti/policy secure
Source
support@hackerone.com
EPSS trend
0%50%100%27 October 2026: 100.00%27 October 202627 October 2026

EPSS 100.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Please apply mitigations per vendor instructions. For more information, please see: 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 ; https://nvd.nist.gov/vuln/detail/CVE-2024-21887

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.