A improper limitation of a pathname to a restricted directory vulnerability ('path traversal') [CWE-22] in Fortinet FortiOS version 7.2.0 through 7.2.3, 7.0.0 through 7.0.9 and before 6.4.11 allows a privileged attacker to read and write files on the underlying Linux system via crafted CLI commands.
https://thehackernews.com/2024/06/chinese-cyber-espionage-group-exploits.html
https://cloud.google.com/blog/topics/threat-intelligence/uncovering-unc3886-espionage-operations
https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Year_in_Review_of_ZeroDays.pdf
https://meterpreter.org/cve-2023-34048-inside-the-zero-day-vulnerability-exploited-by-unc3886/
https://www.tenable.com/blog/volt-typhoon-cybersecurity-advisory
https://thehackernews.com/2023/03/from-ransomware-to-cyber-espionage-55.html
https://www.mandiant.com/resources/blog/zero-days-exploited-2022