What’s Vulnerable › Vulnerabilities

CVE-2026-5688: Totolink A7100RU cstecgi.cgi setDdnsCfg os command injection

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-06 · updated 2026-07-24
• Weakness: CWE-77

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.

Affected products

• Totolink A7100RU: 7.4cu.2313_b20191024

References

• https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_186/README.md
• https://vuldb.com/submit/792945
• https://vuldb.com/vuln/355515
• https://vuldb.com/vuln/355515/cti
• https://www.totolink.net/

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