Affected: First Co., Ltd. CFR-904E, CFR-908E, CFR-916E, First Co., Ltd. CFR-4EHD, CFR-8EHD, CFR-16EHD, First Co., Ltd. CFR-4EHA, CFR-8EHA, CFR-16EHA, First Co., Ltd. CFR-4EAAM, CFR-4EABC, First Co., Ltd. CFR-4EAA, CFR-8EAA, CFR-16EAA, First Co., Ltd. CFR-4EAB, CFR-8EAB, CFR-16EAB, First Co., Ltd. CFR-1004EA, CFR-1008EA, CFR-1016EA, First Co., Ltd. MD-404HD, MD-808HD, First Co., Ltd. MD-404HA, MD-808HA, First Co., Ltd. MD-404AA, MD-808AA and 2 more

First Corporation's DVRs use a hard-coded password, which may allow a remote unauthenticated attacker to rewrite or obtain the configuration information of the affected device. Note that updates are provided only for Late model of CFR-4EABC, CFR-4EAB, CFR-8EAB, CFR-16EAB, MD-404AB, and MD-808AB. As for the other products, apply the workaround.