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CVE-2026-1623

Totolink A7000R cstecgi.cgi setUpgradeFW command injection

CVSS 5.3 MEDIUMEPSS 2.0%CWE-74CWE-77
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.3EPSS 2.0%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
29 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A weakness has been identified in Totolink A7000R 4.1cu.4154. Impacted is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument FileName 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 · A7000R

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References
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.mdhttps://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md#pochttps://vuldb.com/?ctiid.343382https://vuldb.com/?id.343382https://vuldb.com/?submit.740767https://www.totolink.net/