Huawei AC6605 with software V200R001C00; AC6605 with software V200R002C00; ACU with software V200R001C00; ACU with software V200R002C00; S2300, S3300, S2700, S3700 with software V100R006C05 and earlier versions; S5300, S5700, S6300, S6700 with software V100R006, V200R001, V200R002, V200R003, V200R005C00SPC300 and earlier versions; S7700, S9300, S9300E, S9700 with software V100R006, V200R001, V200R002, V200R003, V200R005C00SPC300 and earlier versions could allow remote attackers to send a special SSH packet to the VRP device to cause a denial of service.

Huawei S5300 with software V200R003C00, V200R007C00, V200R008C00, V200R009C00; S5700 with software V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R005C03, V200R007C00, V200R008C00, V200R009C00; S6300 with software V200R003C00, V200R005C00, V200R008C00, V200R009C00; S6700 with software V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R005C00, V200R008C00, V200R009C00; S7700 with software V200R007C00, V200R008C00, V200R009C00; S9300 with software V200R007C00, V200R008C00, V200R009C00; S9700 with software V200R007C00, V200R008C00, V200R009C00; and S12700 with software V200R007C00, V200R007C01, V200R008C00, V200R009C00 allow the attacker to cause a denial of service condition by sending malformed MPLS packets.

Huawei AR routers with software before V200R007C00SPC100; Quidway S9300 routers with software before V200R009C00; S12700 routers with software before V200R008C00SPC500; S9300, Quidway S5300, and S5300 routers with software before V200R007C00; and S5700 routers with software before V200R007C00SPC500 make it easier for remote authenticated administrators to obtain and decrypt passwords by leveraging selection of a reversible encryption algorithm.

Huawei AR routers with software before V200R007C00SPC100; Quidway S9300 routers with software before V200R009C00; S12700 routers with software before V200R008C00SPC500; S9300, Quidway S5300, and S5300 routers with software before V200R007C00; and S5700 routers with software before V200R007C00SPC500 makes it easier for remote authenticated administrators to obtain encryption keys and ciphertext passwords via vectors related to key storage.

Memory leak in Huawei S9300, S5300, S5700, S6700, S7700, S9700, and S12700 devices allows remote attackers to cause a denial of service (memory consumption and restart) via a large number of malformed packets.

Huawei S7700, S9300, S9700, and S12700 devices with software before V200R008C00SPC500 use random numbers with insufficient entropy to generate self-signed certificates, which makes it easier for remote attackers to discover private keys by leveraging knowledge of a certificate.

Memory leak in Huawei S5300EI, S5300SI, S5310HI, S6300EI/ S2350EI, and S5300LI Campus series switches with software V200R001C00 before V200R001SPH018, V200R002C00 before V200R003SPH011, and V200R003C00 before V200R003SPH011; S9300, S7700, and S9700 Campus series switches with software V200R001C00 before V200R001SPH023, V200R002C00 before V200R003SPH011, and V200R003C00 before V200R003SPH011; and S2300 and S3300 Campus series switches with software V100R006C05 before V100R006SPH022 allows remote attackers to cause a denial of service (memory consumption and reboot) via a large number of ICMPv6 packets.

Huawei Quidway S9700, S5700, S5300, S9300, and S7700 switches with software before V200R003SPH012 allow remote attackers to cause a denial of service (switch restart) via crafted traffic.