The Hyper Module Management (HMM) software of Huawei Tecal E9000 Chassis V100R001C00SPC160 and earlier versions allows the operator to modify the user configuration of iMana through privilege escalation.

The Hyper Module Management (HMM) software of Huawei Tecal E9000 Chassis V100R001C00SPC160 and earlier versions could allow a non-super-domain user who accesses HMM through SNMPv3 to perform operations on a server as a super-domain user.

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.