CVE-2024-21887: Ivanti Connect Secure Command Injection
Summary
Ivanti Connect Secure and Policy Secure allow command injection via crafted HTTP requests to the API (post-auth chain).
Why It Matters
CRITICAL severity — known to be exploited in the wild（CISA KEV）；action required: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. ；affects Ivanti Connect Secure 22.3R1 to 22.3R2, Ivanti Policy Secure 22.3R1 to 22.3R2.
Current Status
- Vulnerability status: Known exploited (CISA KEV)
- Last intelligence update: 2026-10-27 · source: NVD
- CISA KEV added: 2024-01-10 · remediation deadline: 2024-01-22
Entity Activity Timeline
- 2024-01-10 — Added to CISA KEV as known-exploited · action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- 2024-01-10 — NVD publication / disclosure
- 2026-10-27 — Intelligence record updated（NVD sync）
Severity
CRITICAL
CVSS Score: 9.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Known Exploited (CISA KEV)
Known Exploited Vulnerability
Added: 2024-01-10 · Remediation deadline: 2024-01-22
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Source Attribution
Source: NVD · Updated: 2026-10-27T00:00:00.000 · Confidence: high
Impact
Based on CVSS vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
- Ivanti Connect Secure 22.3R1 to 22.3R2 (Unknown)
- Ivanti Policy Secure 22.3R1 to 22.3R2 (Unknown)
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
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