Provide references for CVE-2021-27855.
Where can I find more information about CVE-2021-27855?
References are available at: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5685.php, https://www.fatpipeinc.com/support/cve-list.php, https://www.zeroscience.mk/codes/fatpipe_privesc.txt.