The administrator password setting of the D-Link DIR-820L 1.06B02 is has Improper Access Control and is vulnerable to Unverified Password Change via crafted POST request to /get_set.ccp.
D-Link DIR-820L 1.05b03 was discovered to contain a remote code execution (RCE) vulnerability via the ping_addr parameter in the ping_v4 and ping_v6 functions.
OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to escalate privileges to root via a crafted payload with the ping_addr parameter to ping.ccp.
A stack overflow vulnerability exists in pingV4Msg component in D-Link DIR820LA1_FW105B03, allows attackers to cause a denial of service via the nextPage parameter to ping.ccp.
A heap overflow vulnerability in D-Link DIR820LA1_FW106B02 allows attackers to cause a denial of service via the config.log_to_syslog and log_opt_dropPackets parameters to mydlink_api.ccp.