Critical 9.8Published Apr 27, 2026

CVE-2026-7136Totolink A8000RU CGI cstecgi.cgi setDmzCfg os command injection

Updated under an hour ago (Oct 26, 2026, 3:10 AM ET)

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It affects Totolink A8000RU. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Totolink A8000RU

Exploited in the last 30 days

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument wanIdx 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.

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 27, 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

https://vuldb.com/vuln/359735vdb-entry, technical-description
https://vuldb.com/vuln/359735/ctisignature, permissions-required
https://vuldb.com/submit/801007third-party-advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_311/README.mdexploit
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.