CVE-2025-22457
Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow Vulnerability
Ivanti Connect Secure, Policy Secure, and ZTA Gateways
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6, Ivanti Policy Secure before version 22.7R1.4, and Ivanti ZTA Gateways before version 22.8R2.2 allows a remote unauthenticated attacker to achieve remote code execution.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 4 April 2025. US federal agencies were required to remediate it by 11 April 2025. 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:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Frequently asked questions
Is CVE-2025-22457 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2025-22457.
What does CVE-2025-22457 affect?
CVE-2025-22457 affects Ivanti Connect Secure, Policy Secure, and ZTA Gateways. A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6, Ivanti Policy Secure before version 22.7R1.4, and Ivanti ZTA Gateways before version 22.8R2.2 allows a remote unauthenticated attacker to achieve remote code execution.
How severe is CVE-2025-22457?
CVE-2025-22457 is rated CRITICAL with a CVSS base score of 9. 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 11 April 2025.
How should organisations respond to CVE-2025-22457?
Apply the vendor patch for Ivanti Connect Secure, Policy Secure, and ZTA Gateways 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.