PT-2026-31683 · Totolink · Totolink A3300R

Published 2026-04-09 · Updated 2026-04-09 · CVE-2026-31170

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions ToToLink A3300R firmware version 17.0.0cu.557 B20221024

Description A flaw exists in ToToLink A3300R firmware version 17.0.0cu.557 B20221024 that allows attackers to execute arbitrary commands. This is achieved by manipulating the stun-pass parameter within a request to the '/cgi-bin/cstecgi.cgi' API endpoint.

Recommendations Update to a newer version of the firmware that addresses this issue.

Exploit

Fix

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2026-31170

Affected Products

Totolink A3300R

References · 4

• 🔥 https://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-stun-pass-cmd-injection · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-31170 · Security Note
• https://twitter.com/infoflowcloud/status/2042341013688050147 · Twitter Post
• https://twitter.com/CVEnew/status/2042340094552535423 · Twitter Post