Multiple Huawei Campus switches allow remote attackers to enumerate usernames via vectors involving use of SSH by the maintenance terminal.

Huawei S9300, S9303, S9306, S9312 with software V100R002; S7700, S7703, S7706, S7712 with software V100R003, V100R006, V200R001, V200R002, V200R003, V200R005; S9300E, S9303E, S9306E, S9312E with software V200R001; S9700, S9703, S9706, S9712 with software V200R002, V200R003, V200R005; S12708, S12712 with software V200R005; 5700HI, 5300HI with software V100R006, V200R001, V200R002, V200R003, V200R005; 5710EI, 5310EI with software V200R002, V200R003, V200R005; 5710HI, 5310HI with software V200R003, V200R005; 6700EI, 6300EI with software V200R005 could cause a leak of IP addresses of devices, related to unintended interface support for VRP MPLS LSP Ping.

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.