What’s Vulnerable › Vulnerabilities

CVE-2026-7823: Totolink A8000RU cstecgi.cgi setAppFilterCfg os command injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-05 · updated 2026-10-26
• Weakness: CWE-77

Description

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setAppFilterCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Affected products

• Totolink A8000RU: 7.1cu.643_b20200521

References

• https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_330/README.md
• https://vuldb.com/submit/807775
• https://vuldb.com/vuln/361075
• https://vuldb.com/vuln/361075/cti
• https://www.totolink.net/

Get alerted when CVE-2026-7823 or the next vulnerability affects your stack