CVE-2026-4976
HIGHTotolink LR350 cstecgi.cgi setWiFiGuestCfg buffer overflow
Title source: cnaDescription
A vulnerability was found in Totolink LR350 9.3.5u.6369_B20220309. This vulnerability affects the function setWiFiGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ssid results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
References (5)
Core 5
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-353863 | Totolink LR350 cstecgi.cgi setWiFiGuestCfg buffer overflow
https://vuldb.com/?id.353863
Signature, Permissions Required signature
permissions-required
VDB-353863 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.353863
Third Party Advisory third-party-advisory
Submit #778274 | TOTOLINK LR350 LR350 V9.3.5u.6369_B20220309 Buffer Overflow
https://vuldb.com/?submit.778274
Exploit exploit
https://lavender-bicycle-a5a.notion.site/TOTOLINK-LR350-setWiFiGuestCfg-32153a41781f8048a918c1c78e95064e?source=copy_link
Product product
https://www.totolink.net/
Scores
CVSS v3
8.8
EPSS
0.0066
EPSS Percentile
46.3%
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
total
Details
CWE
CWE-119
CWE-120
Status
published
Products (2)
Totolink/LR350
9.3.5u.6369_B20220309
totolink/lr350_firmware
9.3.5u.6369_b20220309
Published
Mar 27, 2026
Tracked Since
Mar 29, 2026