Palo Alto Networks has fixed a new critical vulnerability affecting multiple versions of PAN-OS, the operating system affecting its next-generation firewalls. The issue received the identification number CVE-2020-2040 and has a severity score of 9.8 out of 10 and requires no user interaction. An unauthenticated attacker can exploit it by sending a malicious request to specific interfaces. The vulnerability is a buffer overflow that permits an attacker to disrupt system processes. There is also the potential for executing arbitrary code with root privileges.
Source: https://www.bleepingcomputer.com/news/security/palo-alto-networks-fixes-critical-flaw-in-pan-os-firewall-software/