Denial of service in Huawei CV81-WDM FW



Published: 2022-08-04
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-37395
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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CV81-WDM FW
Hardware solutions / Firmware

Vendor Huawei

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU66082

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-37395

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in the SNMP parsing module. A remote attacker can send a specially crafted SNMP packet and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CV81-WDM FW: 01.70.49.29.46

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20220810-01-8cfecdcc-en


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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