CVE-2026-7750

HIGH

Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow

Title source: cna
STIX 2.1

Description

A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument mac_address results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-360925 | Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow
https://vuldb.com/vuln/360925
Signature, Permissions Required signature permissions-required
VDB-360925 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/360925/cti
Third Party Advisory third-party-advisory
Submit #807204 | Totolink N300RH N300RH V3_Firmware V3.2.4-B20220812 Buffer Overflow
https://vuldb.com/submit/807204
Product product
https://www.totolink.net/

Scores

CVSS v3 8.8
EPSS 0.0009
EPSS Percentile 24.6%
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 (1)
Totolink/N300RH 3.2.4-B20220812
Published May 04, 2026
Tracked Since May 04, 2026