#VU62672 Buffer overflow in CV81-WDM FW - CVE-2022-29797

Vulnerability identifier: #VU62672

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-29797

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CV81-WDM FW
Hardware solutions / Firmware

Vendor: Huawei

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can send a specially crafted message, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CV81-WDM FW: 01.70.49.29.46

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External links
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20220427-01-e9a493e2-en

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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.