Vulnerability identifier: #VU63774

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2022-29402

CWE-ID: CWE-78

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
TL-WR840N EU
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: TP-Link

Description

The vulnerability allows a local attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to insecure protections for UART console. An attacker with physical access can execute arbitrary OS commands on the target system.

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

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

TL-WR840N EU: 5 - 6.20

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External links
http://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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