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CVE-2026-7139

Totolink A8000RU CGI cstecgi.cgi setWiFiAclRules os command injection

CVSS 9.3 CRITICALEPSS 1.8%CWE-77CWE-78
Vexday Risk Score
48Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 9.3EPSS 1.8%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
27 Apr 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mode causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.
CVSS: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
Affected products
Totolink · A8000RU
public PoCs found — 1
cve_referencegithub.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_314/README.mdunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_314/README.mdhttps://vuldb.com/submit/801106https://vuldb.com/vuln/359738https://vuldb.com/vuln/359738/ctihttps://www.totolink.net/