CVE-2020-1866: Huawei NIP6800 Firmware

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Huawei NIP6800 Firmware: version v500r001c30 only; version v500r001c60spc500 only; version v500r005c00 only
• Huawei s12700 Firmware: version v200r008c00 only
• Huawei s2700 Firmware: version v200r008c00 only
• Huawei s5700 Firmware: version v200r008c00 only
• Huawei s6700 Firmware: version v200r008c00 only
• Huawei s7700 Firmware: version v200r008c00 only
• Huawei s9700 Firmware: version v200r008c00 only
• Huawei Secospace USG6600 Firmware: version v500r001c30spc200 only; version v500r001c30spc600 only; version v500r001c60spc500 only; version v500r005c00 only
• Huawei USG9500 Firmware: version v500r001c30spc300 only; version v500r001c30spc600 only; version v500r001c60spc500 only; version v500r005c00 only

Published 2021-01-13. Last modified 2026-06-17.