CVE-2020-5771

CVE-2020-5771 is an improper input validation vulnerability affecting Teltonika TRB2_R_00.02.04.01 firmware, specifically impacting Teltonika TRB245 devices. An authenticated, remote attacker can exploit this flaw by uploading a malicious backup archive, leading to root privilege escalation. The vulnerability carries a CVSS score of 7.5 (HIGH), indicating a high impact on confidentiality, integrity, and availability, with high attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.