by Kastro
Paper/Archive/CVE-2026-6155

CVE-2026-6155

Totolink A7100RU — Totolink A7100RU CGI cstecgi.cgi setWanCfg os command injection

EPSS 2%public exploitCVSS 9.8
critical.is priorityof 100
55
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 78.5.785 × 2015.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

A weakness has been identified in Totolink A7100RU 7.4cu.2313. The impacted element is the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument pppoeServiceName can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.

Affected

ProductAffectedFixed inSource
A7100RU7.4cu.2313–CNA

Scores by source

VulDB (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

writeupvuldb.com/vuln/357035refvuldb.com/vuln/357035/ctiwriteupvuldb.com/submit/793679exploitgithub.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_196/README.mdreftotolink.net