CVE-2025-0108

CVE-2025-0108 is a missing-authentication flaw (CWE-306) in the PAN-OS management web interface of Palo Alto Networks firewalls that lets an unauthenticated attacker with network access to that interface bypass login and invoke certain PHP scripts, reportedly via path-confusion tricks in the web server stack. Invoking the scripts does not yield remote code execution, but it can compromise the confidentiality and integrity of PAN-OS, such as by reading or modifying management-plane information. Any PAN-OS firewall whose management web interface is reachable by an attacker — for example, exposed to the internet or reachable from a compromised internal network — is affected, while Cloud NGFW and Prisma Access are not. The flaw is being actively exploited: CISA added it to the Known Exploited Vulnerabilities catalog on 2025-02-18, a public proof-of-concept is available, EPSS puts the 30-day exploitation probability at 98.5%, and headlines report attackers chaining this bug with other PAN-OS flaws to breach firewalls.

What to do: Upgrade PAN-OS to a fixed release per the Palo Alto Networks advisory (security.paloaltonetworks.com/CVE-2025-0108), since the vendor has patched the flaw. Until patched, restrict management web interface access to trusted internal IP addresses or management-only network zones as recommended in the vendor's hardening guidance. Check management-interface logs for unauthenticated requests to PHP scripts and for signs of chaining with other recently exploited PAN-OS vulnerabilities.