CVE-2019-1678

CVE-2019-1678 is a denial-of-service vulnerability affecting Cisco Meeting Server versions prior to 2.4.3. An authenticated, remote attacker can exploit improper validation of coSpaces configuration parameters by inserting crafted strings, preventing users from joining conference calls in affected coSpaces. This vulnerability has a CVSS score of 4.3 (Medium), indicating a low impact on availability with no confidentiality or integrity compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.