CVE-2020-1847: Huawei NIP6300 Firmware

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

There is a denial of service vulnerability in some Huawei products. There is no protection against the attack scenario of specific protocol. A remote, unauthorized attackers can construct attack scenarios, which leads to denial of service.Affected product versions include:NIP6300 versions V500R001C30,V500R001C60;NIP6600 versions V500R001C30,V500R001C60;Secospace USG6300 versions V500R001C30,V500R001C60;Secospace USG6500 versions V500R001C30,V500R001C60;Secospace USG6600 versions V500R001C30,V500R001C60;USG9500 versions V500R001C30,V500R001C60.

Affected products

• Huawei NIP6300 Firmware: version v500r001c30 only; version v500r001c60 only
• Huawei NIP6600 Firmware: version v500r001c30 only; version v500r001c60 only
• Huawei Secospace USG6300 Firmware: version v500r001c30 only; version v500r001c60 only
• Huawei Secospace USG6500 Firmware: version v500r001c30 only; version v500r001c60 only
• Huawei Secospace USG6600 Firmware: version v500r001c30 only; version v500r001c60 only
• Huawei USG9500 Firmware: version v500r001c30 only; version v500r001c60 only

Published 2020-11-13. Last modified 2026-06-17.