CVE-2023-4746: TOTOLINK N200RE V5 Validity_check format string

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-09-04 · updated 2026-06-17
Weakness: CWE-134

Description

A vulnerability classified as critical has been found in TOTOLINK N200RE V5 9.3.5u.6437_B20230519. This affects the function Validity_check. The manipulation leads to format string. It is possible to initiate the attack remotely. The root-cause of the vulnerability is a format string issue. But the impact is to bypass the validation which leads to to OS command injection. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-238635.

Affected products

TOTOLINK N200RE V5: 9.3.5u.6437_b20230519

References

https://gist.github.com/dmknght/8f3b6aa65e9d08f45b5236c6e9ab8d80
https://vuldb.com/?ctiid.238635
https://vuldb.com/?id.238635
https://gist.github.com/dmknght/8f3b6aa65e9d08f45b5236c6e9ab8d80
https://vuldb.com/?ctiid.238635
https://vuldb.com/?id.238635

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