CVE-2026-1623mediumobserved exploitationCWE-74CWE-77

CVE-2026-1623: medium-severity vulnerability in Totolink A7000R

Totolink A7000R cstecgi.cgi setUpgradeFW command injection

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55Vexday Risk Score

Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.

ssvc Actcvss 5.3epss 2.4%
from disclosure to weapon279 days
Published on NVDJan 29
1st PoC+279d
VulnCheck+182d
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
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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