Vulnary
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Critical· 9.1actively exploitedofficial fix available

CVE-2024-21887

A critical command injection flaw in Ivanti Connect Secure and Policy Secure allows an authenticated administrator to run arbitrary commands on the appliance. The vulnerability can be exploited over the network and can compromise confidentiality, integrity, and availability. It affects versions 9.x and 22.x of the products.

publishedJan 12, 2024
last modifiedAug 4, 2026
sourcesNVD · CISA-KEV
severity · cvss
9.1
critical · how bad it is
exploitation · epss
100%
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 Connect Secure 9.x and 22.x, and Ivanti Policy Secure 9.x and 22.x. The typical user is an organization that runs these appliances and has administrators with privileged access.

02

Real-world impact

An attacker who gains administrator access could run any command on the appliance, potentially taking control of the system, exfiltrating data, or disrupting services.

03

Why this severity

The CVSS score of 9.1 reflects that the flaw can be exploited remotely by an attacker with high privileges, and it allows complete compromise of the system, affecting confidentiality, integrity, and availability.

04

What to do about it

official fix available
recommended steps
  1. 01Follow the vendor’s mitigation instructions for CVE-2024-21887.
  2. 02If no mitigation is available, discontinue use of the product.

CISA KEV required action

05

Timeline

  1. Jan 10, 2024 · Jan 10, 2024
    Confirmed exploited (CISA KEV)
    CISA added it to the Known Exploited Vulnerabilities catalog — attackers are using it in the wild.
  2. Jan 12, 2024 · Jan 12, 2024
    Published
    Disclosed and added to the National Vulnerability Database.
  3. Jan 22, 2024 · Jan 22, 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 requiredHigh
User interactionNone needed
ScopeChanged
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 →