Vulnerability identifier: #VU46090

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9086

CWE-ID: CWE-119

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Huawei 4G Router B612
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Huawei

Description

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

The vulnerability exists due to a boundary error. A remote attacker on the local network can send special UPNP message, trigger memory corruption and cause a denial o service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Huawei 4G Router B612: B612s-25dTCPU-V100R001B192D03SP00C234 - B612s-25dTCPU-V100R001B192D05SP00C00

---

External links
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200826-01-buffer_en

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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