Denial of service in Huawei Smart WiFi Router
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-46740 |
| CWE-ID | CWE-20 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
WS7100-20 Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Huawei |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU70081
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-2022-46740
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect verification of external messages in the Wi-Fi module. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWS7100-20: 10.0.5.33
External linkshttp://www.huawei.com/en/psirt/security-advisories/2022/huawei-sa-dosvihswr-8f632df1-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).
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
