CVE-2021-37122: Huawei Cloudengine 12800 Firmware

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

There is a use-after-free (UAF) vulnerability in Huawei products. An attacker may craft specific packets to exploit this vulnerability. Successful exploitation may cause the service abnormal. Affected product versions include:CloudEngine 12800 V200R005C10SPC800,V200R019C00SPC800;CloudEngine 5800 V200R005C10SPC800,V200R019C00SPC800;CloudEngine 6800 V200R005C10SPC800,V200R005C20SPC800,V200R019C00SPC800;CloudEngine 7800 V200R005C10SPC800,V200R019C00SPC800.

Affected products

• Huawei Cloudengine 12800 Firmware: version v200r005c10spc800 only; version v200r019c00spc800 only
• Huawei Cloudengine 5800 Firmware: version v200r005c10spc800 only; version v200r019c00spc800 only
• Huawei Cloudengine 6800 Firmware: version v200r005c10spc800 only; version v200r005c20spc800 only; version v200r019c00spc800 only
• Huawei Cloudengine 7800 Firmware: version v200r005c10spc800 only; version v200r019c00spc800 only

Published 2021-10-27. Last modified 2026-06-17.