CVE-2019-12779

CVE-2019-12779 is a local privilege escalation vulnerability affecting libqb before version 1.0.5, allowing an attacker to overwrite arbitrary files. This is due to the library's use of predictable filenames in /dev/shm and /tmp without O_EXCL, making it susceptible to symlink attacks. With a CVSS score of 7.1 (High), the vulnerability has low attack complexity and requires local user privileges, potentially leading to high integrity and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.