CVE-2020-1816: Huawei NIP6800 Firmware

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Huawei NIP6800 versions V500R001C30, V500R001C60SPC500, and V500R005C00; Secospace USG6600 and USG9500 versions V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, and V500R005C00 have a Denial of Service (DoS) vulnerability. Due to improper processing of specific IPSEC packets, remote attackers can send constructed IPSEC packets to affected devices to exploit this vulnerability. Successful exploit could cause the IPSec function of the affected device abnormal.

Affected products

• Huawei NIP6800 Firmware: version v500r001c30 only; version v500r001c60spc500 only; version v500r005c00 only
• Huawei Secospace USG6600 Firmware: version v500r001c30spc200 only; version v500r001c30spc600 only; version v500r001c60spc500 only; version v500r005c00 only
• Huawei USG9500 Firmware: version v500r001c30spc200 only; version v500r001c30spc600 only; version v500r001c60spc500 only; version v500r005c00 only

Published 2020-02-18. Last modified 2026-06-17.