Medium severity · published May 25, 2022
CVE-2022-29402
TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console
6.8
CVSS
0.4%
EPSS
No
On KEV
Description
TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Tl-wr840n Firmware · Tp-link
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-29402
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-29402
Exploit
https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html
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