CVE-2026-7719

CRITICAL

Totolink WA300 POST Request cstecgi.cgi loginauth buffer overflow

Title source: cna
STIX 2.1

Description

A security flaw has been discovered in Totolink WA300 5.2cu.7112_B20190227. The affected element is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument http_host results in buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-360895 | Totolink WA300 POST Request cstecgi.cgi loginauth buffer overflow
https://vuldb.com/vuln/360895
Signature, Permissions Required signature permissions-required
VDB-360895 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/360895/cti
Third Party Advisory third-party-advisory
Submit #807197 | Totolink WA300 WA300 V5.2cu.7112_B20190227 Buffer Overflow
https://vuldb.com/submit/807197
Product product
https://www.totolink.net/

Scores

CVSS v3 9.8
EPSS 0.0010
EPSS Percentile 27.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-119 CWE-120
Status published
Products (1)
Totolink/WA300 5.2cu.7112_B20190227
Published May 04, 2026
Tracked Since May 04, 2026