Description
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.
References (6)
Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.343382
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.343382
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.740767
Exploit, Third Party Advisory exploit
patch
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md
Exploit exploit
patch
https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md#poc
Product product
https://www.totolink.net/
Scores
CVSS v3
6.3
EPSS
0.0138
EPSS Percentile
80.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-74
CWE-77
Status
published
Products (1)
totolink/a7000r_firmware
4.1cu.4154
Published
Jan 29, 2026
Tracked Since
Feb 18, 2026