Description
A weakness has been identified in TOTOLINK A3300R 17.0.0cu.557_B20221024. The impacted element is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Executing manipulation can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be exploited.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.329909
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.329909
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.673721
Exploit, Third Party Advisory exploit
https://github.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setDdnsCfg.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