CVE:CVE-2021-21723
CNNVD:CNNVD-202101-2270
ZTE ZXR10 9904等都是中国中兴（ZTE）公司的一款交换机设备。
ZTE 多款产品存在资源管理错误漏洞，该漏洞源于对内存释放处理不当，远程攻击者可利用该漏洞在某些特定场景下通过一系列操作触发漏洞，导致内存泄漏，最终导致设备拒绝服务。以下产品及版本受到影响：ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12。
solution:Upgrade zte zxr10_9904_firmware to a higher version than v1.01.10.b12,and avoid the version (,v1.01.10.b12]; Upgrade zte zxr10_9908_firmware to a higher version than v1.01.10.b12,and avoid the version (,v1.01.10.b12]; Upgrade zte zxr10_9916_firmware to a higher version than v1.01.10.b12,and avoid the version (,v1.01.10.b12]; Upgrade zte zxr10_9904-s_firmware to a higher version than v1.01.10.b12,and avoid the version (,v1.01.10.b12]; Upgrade zte zxr10_9908-s_firmware to a higher version than v1.01.10.b12,and avoid the version (,v1.01.10.b12]