CVE-2024-21893
Ivanti Connect Secure, Policy Secure, and Neurons Server-Side Request Forgery (SSRF) Vulnerability
Ivanti Connect Secure, Policy Secure, and Neurons
A server-side request forgery vulnerability in the SAML component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) and Ivanti Neurons for ZTA allows an attacker to access certain restricted resources without authentication.
Ransomware groups exploiting CVE-2024-21893
DragonForce is a major ransomware-as-a-service operation first observed in August 2023 that launched a formal affiliate program offering 80% revenue share, then rebranded as a "ransomware cartel" in 2025, gaining notoriety for high-profile attacks on UK retail
Exploitation is attributed to these groups across their recorded activity. It does not follow that every organisation they listed was reached through CVE-2024-21893 — the source data does not record an entry point per incident.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 31 January 2024. US federal agencies were required to remediate it by 2 February 2024. CISA records this vulnerability as known to be used in ransomware campaigns.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 100%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Recent listings by these groups
Disclosures from the groups above, newest first.
Frequently asked questions
Is CVE-2024-21893 being exploited by ransomware groups?
Yes. CVE-2024-21893 is recorded as exploited by Dragonforce. Between them these groups account for 629 victim disclosures in this database. CISA also records this vulnerability as used in ransomware campaigns.
What does CVE-2024-21893 affect?
CVE-2024-21893 affects Ivanti Connect Secure, Policy Secure, and Neurons. A server-side request forgery vulnerability in the SAML component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) and Ivanti Neurons for ZTA allows an attacker to access certain restricted resources without authentication.
How severe is CVE-2024-21893?
CVE-2024-21893 is rated HIGH with a CVSS base score of 8.2. EPSS puts the probability of exploitation in the next 30 days at 100%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 2 February 2024.
How should organisations respond to CVE-2024-21893?
Apply the vendor patch for Ivanti Connect Secure, Policy Secure, and Neurons as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.