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CVE-2024-21893

Exploitation: active CVSS 8.2 HIGH Ransomware: known use

CVSS base score: 8.2 (High) vendor CNA · v3.0

Score assigned by the vendor's own CVE Numbering Authority (CNA); CISA's Vulnrichment program adds a score only when the CNA omits one.

Ivanti Connect Secure, Policy Secure, and Neurons Server-Side Request Forgery (SSRF) Vulnerability

Vendor: Ivanti   Product: Connect Secure, Policy Secure, and Neurons

Description

Ivanti Connect Secure (ICS, formerly known as Pulse Connect Secure), Ivanti Policy Secure, and Ivanti Neurons contain a server-side request forgery (SSRF) vulnerability in the SAML component that allows an attacker to access certain restricted resources without authentication.

Lifecycle Timeline

Each milestone comes from a different source, so gaps between them are gaps in what those sources publish, not evidence that nothing happened. EPSS history for this CVE holds 149 points from 2024-02-10, tracked daily from 2026-09-09; earlier points are weekly, which dates a spike to within a week. Peak probability 100.0% on 2026-06-20.

Published Applicability

CVE List v5 (CNA container) 4 affected · 0 fixed · 0 not affected
CVE List v5 (ADP/Vulnrichment) 17 affected · 0 fixed · 0 not affected

Check whether a specific version is affected →

What each source publishes about which product versions carry this vulnerability, kept as written rather than merged. Absence here means no source has published applicability data, not that nothing is affected.

Research & News Coverage

No mentions found in monitored research blogs or news feeds.

Detection & Exploitation

Scan
Exploit / Pen Test
Host / SIEM
none published

Coverage across public collections only: Nuclei and OpenVAS NVT (scan); Snort and Suricata ET Open (network); Sigma and YARA (host/SIEM); Metasploit, Exploit-DB and public GitHub repositories (exploit). Absence here means nothing public was found, not that detection is impossible.
GitHub PoC repositories are collected automatically by PoC-in-GitHub (CC0) and are not vetted: some are fakes and some are malware. Treat them as evidence that code was published, not as code to run.
OpenVAS coverage derives from the Greenbone Community Feed, made available under the Open Database License (ODbL) v1.0; its individual Vulnerability Tests are licensed GNU GPL v2.

CISA Assessment (Vulnrichment / SSVC)

active
yes
partial
—
8.2 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CWE-918 — Server-Side Request Forgery (SSRF)
2024-05-01

D3FEND Countermeasures

Defensive techniques inferred by MITRE D3FEND from the underlying weakness (CWE-918) — general hardening and detection guidance for this weakness class, not a vendor patch for this specific CVE.

KEV Catalog Status

2024-01-31
2024-02-02
Known

Listed By

SourceDateRecord
CISA KEV 2024-01-31 source record →
CISA Vulnrichment 2024-05-01 source record →

Referenced in Advisories

DateAdvisoryIssuer
2024-02-29 CISA and Partners Release Advisory on Threat Actors Exploiting Ivanti Connect Secure and Policy Secure Gateways Vulnerabilities CISA
2024-02-29 Threat Actors Exploit Multiple Vulnerabilities in Ivanti Connect Secure and Policy Secure Gateways CISA
2024-02-09 2024-004: Critical Vulnerabilities in Ivanti Connect Secure CERT-EU
2024-01-30 Updated: New Software Updates and Mitigations to Defend Against Exploitation of Ivanti Connect Secure and Policy Secure Gateways CISA

Weaponization Timeline — Offensive & Testing Tools

No exploit-tool sightings recorded for this CVE.

Evidence tiers are explained on the About page — a merged Metasploit module is far stronger evidence than a distro package mention.

External References