There is an out-of-bounds read vulnerability in several products. The software reads data past the end of the intended buffer when parsing certain crafted DHCP messages. Successful exploit could cause certain service abnormal. Affected product versions include:NIP6800 versions V500R001C30,V500R001C60SPC500,V500R005C00;S12700 versions V200R008C00;S2700 versions V200R008C00;S5700 versions V200R008C00;S6700 versions V200R008C00;S7700 versions V200R008C00;S9700 versions V200R008C00;Secospace USG6600 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500,V500R005C00;USG9500 versions V500R001C30SPC300,V500R001C30SPC600,V500R001C60SPC500,V500R005C00.

Huawei Secospace USG6600 V500R001C30SPC100, Secospace USG6600 V500R001C30SPC200, Secospace USG6600 V500R001C30SPC300, USG9500 V500R001C30SPC100, USG9500 V500R001C30SPC200, USG9500 V500R001C30SPC300 have a memory leak vulnerability due to memory don't be released when an local authenticated attacker execute special commands many times. An attacker could exploit it to cause memory leak, which may further lead to system exceptions.