CVE-2021-22366: Huawei ESE620X Vess Firmware

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

There is an out-of-bounds read vulnerability in eSE620X vESS V100R001C10SPC200, V100R001C20SPC200, V200R001C00SPC300. The vulnerability is due to a function that handles an internal message contains an out-of-bounds read vulnerability. An attacker could crafted messages between system process, successful exploit could cause Denial of Service (DoS).

Affected products

• Huawei ESE620X Vess Firmware: version v100r001c10spc200 only; version v100r001c20spc200 only; version v200r001c00spc300 only

Published 2021-06-22. Last modified 2026-06-17.