CVE-2026-1623

moderate-risk
Published 2026-01-29

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.

Do I need to act?

~
1.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Totolink

References (6)

Exploit https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_...
Exploit https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_...
Permissions Required https://vuldb.com/?ctiid.343382
Third Party Advisory https://vuldb.com/?id.343382
Third Party Advisory https://vuldb.com/?submit.740767
Product https://www.totolink.net/
33
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 5/34 · Minimal
Exposure 5/34 · Minimal