CVE-2026-5688

HIGH

Totolink A7100RU cstecgi.cgi setDdnsCfg os command injection

Title source: cna

Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Impacted is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.

References (5)

[Exploit] https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_186/README.md

View Exploit ZIP pw:eip

[Product] https://www.totolink.net/

[Vdb Entry, Technical Description] https://vuldb.com/vuln/355515

[Signature, Permissions Required] https://vuldb.com/vuln/355515/cti

[Third Party Advisory] https://vuldb.com/submit/792945

Scores

CVSS v3 7.3

EPSS 0.0486

EPSS Percentile 89.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A7100RU 7.4cu.2313_b20191024

Published Apr 06, 2026

Tracked Since Apr 07, 2026