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CVE-2026-1326

Totolink NR1800X POST Request cstecgi.cgi setWanCfg command injection

CVSS 5.3 MEDIUMEPSS 3.2%CWE-74CWE-77
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.3EPSS 3.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
22 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. This vulnerability affects the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. This manipulation of the argument Hostname causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
Totolink · NR1800X

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References
https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWanCfg-2e453a41781f80b390f3e1ce0d9dd5b9?source=copy_linkhttps://vuldb.com/?ctiid.342302https://vuldb.com/?id.342302https://vuldb.com/?submit.735787https://www.totolink.net/