CVE-2021-22338: Huawei ECNS280 Firmware

Medium severity, CVSS 5.3. EPSS: 0.6% chance of exploitation in the next 30 days.

There is an XXE injection vulnerability in eCNS280 V100R005C00 and V100R005C10. A module does not perform the strict operation to the input XML message. Attacker can send specific message to exploit this vulnerability, leading to the module denial of service.

Affected products

• Huawei ECNS280 Firmware: version v100r005c00 only; version v100r005c10 only

Published 2021-06-29. Last modified 2026-06-17.