CVE-2023-27533

CVE-2023-27533 is a high-severity input validation vulnerability in curl versions prior to 8.0, specifically affecting its TELNET protocol communication, and impacting products like fedoraproject, haxx, netapp, and splunk. An attacker can exploit this by injecting malicious username and TELNET options during server negotiation, potentially leading to arbitrary code execution if an application accepts user input. With a CVSS score of 8.8, this vulnerability presents a high risk due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, indicating a low current exploitation status.