CVE:CVE-2021-33478
CNNVD:CNNVD-202107-319
Broadcom Media exChange是一个路由器的固件。
Broadcom Media exChange 中TrustZone存在安全漏洞，攻击者可利用此漏洞提升权限并执行任意代码。
solution:Upgrade cisco ip_phone_8800_firmware to a higher version than 14.0\(1\,and avoid the version (,14.0\(1\)); Upgrade cisco ip_phone_8800_series_with_multiplatform_firmware to a higher version than 11.3\(4\,and avoid the version (,11.3\(4\)); Upgrade cisco ip_phone_8811_firmware to a higher version than 14.0\(1\,and avoid the version (,14.0\(1\)); Upgrade cisco ip_phone_8811_with_multiplatform_firmware to a higher version than 11.3\(4\,and avoid the version (,11.3\(4\)); Upgrade cisco ip_phone_8841_firmware to a higher version than 14.0\(1\,and avoid the version (,14.0\(1\)); Upgrade cisco ip_phone_8841_with_multiplatform_firmware to a higher version than 11.3\(4\,and avoid the version (,11.3\(4\)); Upgrade cisco ip_phone_8845_firmware to a higher version than 14.0\(1\,and avoid the version (,14.0\(1\)); Upgrade cisco ip_phone_8845_with_multiplatform_firmware to a higher version than 11.3\(4\,and avoid the version (,11.3\(4\)); Upgrade cisco ip_phone_8851_firmware to a higher version than 14.0\(1\,and avoid the version (,14.0\(1\)); Upgrade cisco ip_phone_8851_with_multiplatform_firmware to a higher version than 11.3\(4\,and avoid the version (,11.3\(4\)); Upgrade cisco ip_phone_8861_firmware to a higher version than 14.0\(1\,and avoid the version (,14.0\(1\)); Upgrade cisco ip_phone_8861_with_multiplatform_firmware to a higher version than 11.3\(4\,and avoid the version (,11.3\(4\)); Upgrade cisco ip_phone_8865_firmware to a higher version than 14.0\(1\,and avoid the version (,14.0\(1\)); Upgrade cisco ip_phone_8865_with_multiplatform_firmware to a higher version than 11.3\(4\,and avoid the version (,11.3\(4\)); Upgrade cisco wireless_ip_phone_8821_firmware to a higher version than 11.0\(6\sr1,and avoid the version (,11.0\(6\)sr1)