CVE-2018-20221

CVE-2018-20221 describes a remote code execution vulnerability in Deltek Ajera Timesheets versions 9.10.16 and prior, specifically within the Secure/SAService.rem component. This flaw allows an authenticated attacker to execute arbitrary code on the server by exploiting deserialization of untrusted user input. The vulnerability carries a high CVSS score of 8.8, indicating a critical risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While not listed on the KEV catalog or Hot List, an exploit module is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit/Nuclei modules, or significant community discussion or media coverage.