CVE-2020-1863: Huawei USG6000V Firmware

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

Huawei USG6000V with versions V500R001C20SPC300, V500R003C00SPC100, and V500R005C00SPC100 have an out-of-bounds read vulnerability. Due to a logical flaw in a JSON parsing routine, a remote, unauthenticated attacker could exploit this vulnerability to disrupt service in the affected products.

Affected products

• Huawei USG6000V Firmware: version v500r001c20spc300 only; version v500r003c00spc100 only; version v500r005c00spc100 only

Published 2020-03-12. Last modified 2026-06-17.