Critical 9.8Published Apr 27, 2026

CVE-2026-7139Totolink A8000RU CGI cstecgi.cgi setWiFiAclRules os command injection

Updated under an hour ago (Oct 27, 2026, 4:50 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Totolink A8000RU

Exploited in the last 30 days

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: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-78, CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Apr 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Totolink A8000RU totolink:a8000ru_firmware	7.1cu.643_b20200521	CNA record

References

References

https://vuldb.com/vuln/359738	vdb-entry, technical-description
https://vuldb.com/vuln/359738/cti	signature, permissions-required
https://vuldb.com/submit/801106	third-party-advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_314/README.md	exploit
https://www.totolink.net/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.