CVE-2026-5178

MEDIUM

Totolink A3300R cstecgi.cgi setIptvCfg command injection

Title source: cna

Description

A security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_b20221024. Affected by this issue is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument vlanPriLan3 leads to command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

References (5)

Core 5

Core References

Product product

https://www.totolink.net/

Vdb Entry, Technical Description vdb-entry technical-description

VDB-354246 | Totolink A3300R cstecgi.cgi setIptvCfg command injection

https://vuldb.com/vuln/354246

Signature, Permissions Required signature permissions-required

VDB-354246 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/354246/cti

Third Party Advisory third-party-advisory

Submit #779147 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection

https://vuldb.com/submit/779147

Exploit exploit

https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_vlanPriLan3_cmd_inject

View Exploit ZIP pw:eip

Scores

CVSS v3 6.3

EPSS 0.0366

EPSS Percentile 88.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-74 CWE-77

Status published

Products (2)

Totolink/A3300R 17.0.0cu.557_b20221024

totolink/a3300r_firmware 17.0.0cu.557_b20221024

Published Mar 31, 2026

Tracked Since Mar 31, 2026