Ivanti Connect Secure, Policy Secure, and ZTA Gateways < 22.7 — RCE

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. CISA has confirmed use of this vulnerability in known ransomware campaigns — treat as high priority for remediation. Federal agencies are required to remediate by 2025-01-15 under CISA BOD 22-01.

This is a Stack-based Buffer Overflow (CWE-121) vulnerability in Ivanti Connect Secure, Policy Secure, and ZTA Gateways. A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.5, Ivanti Policy Secure before version 22.7R1.2, and Ivanti Neurons for ZTA gateways before version 22.7R2.3 allows a remote unauthenticated attacker to achieve remote code execution. Exploitation requires remote network access, higher attack complexity, no authentication required, and no user interaction required.

Probably yes if any of these apply:

Used in known ransomware campaigns. Threat-research write-up: https://cloud.google.com/blog/topics/threat-intelligence/ivanti-connect-secure-vpn-zero-day