IPv6 function in Huawei Quidway S2700 V200R003C00SPC300, Quidway S5300 V200R003C00SPC300, Quidway S5700 V200R003C00SPC300, S2300 V200R003C00, V200R003C00SPC300T, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, S2700 V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, S5300 V200R003C00, V200R003C00SPC300T, V200R003C00SPC600, V200R003C02, V200R005C00, V200R005C01, V200R005C02, V200R005C03, V200R005C05, V200R006C00, V200R007C00, V200R008C00, V200R009C00, S5700 V200R003C00, V200R003C00SPC316T, V200R003C00SPC600, V200R003C02, V200R005C00, V200R005C01, V200R005C02, V200R005C03, V200R006C00, V200R007C00, V200R008C00, V200R009C00, S600-E V200R008C00, V200R009C00, S6300 V200R003C00, V200R005C00, V200R007C00, V200R008C00, V200R009C00, S6700 V200R003C00, V200R005C00, V200R005C01, V200R005C02, V200R007C00, V200R008C00, V200R009C00 has an out-of-bounds read vulnerability. An unauthenticated attacker may send crafted malformed IPv6 packets to the affected products. Due to insufficient verification of the packets, successful exploit will cause device to reset.

XML parser in Huawei S12700 V200R005C00,S1700 V200R009C00, V200R010C00,S3700 V100R006C03, V100R006C05,S5700 V200R001C00, V200R002C00, V200R003C00, V200R003C02, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00,S6700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R005C02, V200R008C00, V200R009C00, V200R010C00,S7700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00,S9700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00,eCNS210_TD V100R004C10, V100R004C10SPC003, V100R004C10SPC100, V100R004C10SPC101, V100R004C10SPC102, V100R004C10SPC200, V100R004C10SPC221, V100R004C10SPC400 has a DOS vulnerability. An attacker may craft specific XML files to the affected products. Due to not check the specially XML file and to parse this file, successful exploit will result in DOS attacks.

XML parser in Huawei S12700 V200R005C00,S1700 V200R009C00, V200R010C00,S3700 V100R006C03, V100R006C05,S5700 V200R001C00, V200R002C00, V200R003C00, V200R003C02, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00,S6700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R005C02, V200R008C00, V200R009C00, V200R010C00,S7700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00,S9700 V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00,eCNS210_TD V100R004C10, V100R004C10SPC003, V100R004C10SPC100, V100R004C10SPC101, V100R004C10SPC102, V100R004C10SPC200, V100R004C10SPC221, V100R004C10SPC400 has a DOS vulnerability. An attacker may craft specific XML files to the affected products. Due to not check the specially XML file and to parse this file, successful exploit will result in DOS attacks.

Multiple heap-based buffer overflows in the eSap software platform in Huawei Campus S9300, S7700, S9700, S5300, S5700, S6300, and S6700 series switches; AR150, AR160, AR200, AR1200, AR2200, AR3200, AR530, NetEngine16EX, SRG1300, SRG2300, and SRG3300 series routers; and WLAN AC6005, AC6605, and ACU2 access controllers allow remote attackers to cause a denial of service (device restart) via a crafted length field in a packet.

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

Huawei S5700 and S6700 with software of V200R005C00 have a DoS vulnerability due to insufficient validation of the Network Quality Analysis (NQA) packets. A remote attacker could exploit this vulnerability by sending malformed NQA packets to the target device. Successful exploitation could make the device restart.

AC6005 V200R006C10SPC200,AC6605 V200R006C10SPC200,AR1200 with software V200R005C10CP0582T, V200R005C10HP0581T, V200R005C20SPC026T,AR200 with software V200R005C20SPC026T,AR3200 V200R005C20SPC026T,CloudEngine 12800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 5800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 6800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 7800 with software V100R003C00, V100R005C00, V100R005C10, V100R006C00, V200R001C00,CloudEngine 8800 with software V100R006C00, V200R001C00,E600 V200R008C00,S12700 with software V200R005C00, V200R006C00, V200R007C00, V200R008C00,S1700 with software V100R006C00, V100R007C00, V200R006C00,S2300 with software V100R005C00, V100R006C00, V100R006C03, V100R006C05, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R005C01, V200R005C02, V200R005C03, V200R006C00, V200R007C00, V200R008C00,S2700 with software V100R005C00, V100R006C00, V100R006C03, V100R006C05, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R005C01, V200R005C02, V200R005C03, V200R006C00, V200R007C00, V200R008C00,S5300 with software V100R005C00, V100R006C00, V100R006C01, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S5700 with software V100R005C00, V100R006C00, V100R006C01, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S6300 with software V100R006C00, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R008C00,S6700 with software V100R006C00, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R003C02, V200R003C10, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S7700 with software V100R003C00, V100R006C00, V200R001C00, V200R001C01, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00,S9300 with software V100R001C00, V100R002C00, V100R003C00, V100R006C00, V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R008C10,S9700 with software V200R001C00, V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00,Secospace USG6600 V500R001C00SPC050 have a MaxAge LSA vulnerability due to improper OSPF implementation. When the device receives special LSA packets, the LS (Link Status) age would be set to MaxAge, 3600 seconds. An attacker can exploit this vulnerability to poison the route table and launch a DoS attack.

Huawei AR3200 with software V200R007C00, V200R005C32, V200R005C20; S12700 with software V200R008C00, V200R007C00; S5300 with software V200R008C00, V200R007C00, V200R006C00; S5700 with software V200R008C00, V200R007C00, V200R006C00; S6300 with software V200R008C00, V200R007C00; S6700 with software V200R008C00, V200R007C00; S7700 with software V200R008C00, V200R007C00, V200R006C00; S9300 with software V200R008C00, V200R007C00, V200R006C00; and S9700 with software V200R008C00, V200R007C00, V200R006C00 allow remote attackers to send abnormal Multiprotocol Label Switching (MPLS) packets to cause memory exhaustion.

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 switches S5700, S6700, S7700, S9700 with software V200R001C00SPC300, V200R002C00SPC100, V200R003C00SPC300, V200R005C00SPC500, V200R006C00; S12700 with software V200R005C00SPC500, V200R006C00; ACU2 with software V200R005C00SPC500, V200R006C00 have a permission control vulnerability. If a switch enables Authentication, Authorization, and Accounting (AAA) for permission control and user permissions are not appropriate, AAA users may obtain the virtual type terminal (VTY) access permission, resulting in privilege escalation.

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 Campus S3700HI with software V200R001C00SPC300; Campus S5700 with software V200R002C00SPC100; Campus S7700 with software V200R003C00SPC300,V200R003C00SPC500; LSW S9700 with software V200R001C00SPC300,V200R003C00SPC300,V200R003C00SPC500; S2350 with software V200R003C00SPC300; S2750 with software V200R003C00SPC300; S5300 with software V200R001C00SPC300,V200R002C00SPC100,V200R003C00SPC300; S5700 with software V200R001C00SPC300,V200R003C00SPC300; S6300 with software V200R001C00SPC300,V200R002C00SPC100,V200R003C00SPC300; S6700 S3300HI with software V200R001C00SPC300,V200R002C00SPC100,V200R003C00SPC300; S7700 with software V200R001C00SPC300; S9300 with software V200R001C00SPC300,V200R003C00SPC300,V200R003C00SPC500; S9300E with software V200R003C00SPC300,V200R003C00SPC500 allow attackers to keep sending malformed packets to cause a denial of service (DoS) attack, aka a heap overflow.

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.

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue.