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.

Multiple heap-based buffer overflows in Huawei Campus Series Switches S3700HI, S5700, S6700, S3300HI, S5300, S6300, S9300, S7700, and LSW S9700 with software V200R001 before V200R001SPH013; S5700, S6700, S5300, and S6300 with software V200R002 before V200R002SPH005; S7700, S9300, S9300E, S5300, S5700, S6300, S6700, S2350, S2750, and LSW S9700 with software V200R003 before V200R003SPH005; and S7700, S9300, S9300E, and LSW S9700 with software V200R005 before V200R005C00SPC300 allow remote attackers to cause a denial of service (device restart) via a crafted length field in a packet.