Denial of service in Huawei eCNS280_TD and eSE620X vESS

Published: 2021-11-25
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-39995
Exploitation vector Network
Public exploit N/A
Vulnerable software
Hardware solutions / Firmware

eSE620X vESS
Hardware solutions / Firmware

Vendor Huawei

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU58359

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39995

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No


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

The vulnerability exists due to a boundary condition in the function that parses data returned by OpenHpi. A remote administrator can trigger out-of-bounds read error and cause a denial of service condition on the system.


Install updates from vendor's website.

Vulnerable software versions

eCNS280_TD: V100R005C10

eSE620X vESS: V100R001C10SPC200, V100R001C20SPC200, V200R001C00SPC300

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.