Denial of service in Huawei Products

Published: 2021-02-24

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU50910

Risk: Medium


CVE-ID: CVE-2021-22321

CWE-ID: CWE-416 - Use After Free

Exploit availability: No


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error. A remote attacker can cause a denial of service condition on the target system.


Install updates from vendor's website.

Vulnerable software versions

Huawei NIP6300: V500R001C30 - V500R001C60

Huawei NIP6600: V500R001C30

Huawei NIP6800: V500R001C60

Huawei S12700: V200R007C01 - V200R011C10

Huawei S1700: V200R009C00SPC200 - V200R011C10

Huawei S2700: V200R008C00 - V200R011C10

Huawei S5700: V200R008C00 - V200R011C10SPC100

Huawei S6700: V200R008C00 - V200R011C10SPC100

Huawei S7700: V200R008C00 - V200R011C10

Huawei S9700: V200R007C01 - V200R011C10

Huawei Secospace USG6300: V500R001C30 - V500R001C60

Huawei Secospace USG6500: V500R001C30 - V500R001C60

Huawei Secospace USG6600: V500R001C30 - V500R001C60

USG9500: V500R001C30 - V500R001C60

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?