Description
A security vulnerability has been detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. This affects the function setDmzCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.329910
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.329910
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.673722
Exploit, Third Party Advisory exploit
https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setDmzCfg.md
Product product
https://www.totolink.net/
Scores
CVSS v3
8.8
EPSS
0.0058
EPSS Percentile
69.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-119
CWE-120
Status
published
Products (1)
totolink/a3300r_firmware
17.0.0cu.557_b20221024
Published
Oct 27, 2025
Tracked Since
Feb 18, 2026