CVE-2026-7717

HIGH

Totolink WA300 POST Request cstecgi.cgi UploadCustomModule buffer overflow

Title source: cna
STIX 2.1

Description

A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument File can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-360893 | Totolink WA300 POST Request cstecgi.cgi UploadCustomModule buffer overflow
https://vuldb.com/vuln/360893
Signature, Permissions Required signature permissions-required
VDB-360893 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/360893/cti
Third Party Advisory third-party-advisory
Submit #807193 | Totolink WA300 WA300 V5.2cu.7112_B20190227 Buffer Overflow
https://vuldb.com/submit/807193
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/WA300 5.2cu.7112_B20190227
Published May 04, 2026
Tracked Since May 04, 2026