CVE-2026-5176

HIGH

Totolink A3300R cstecgi.cgi setSyslogCfg command injection

Title source: cna

Description

A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. Affected is the function setSyslogCfg of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument provided results in command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

References (5)

Core 5

Core References

Product product

https://www.totolink.net/

Vdb Entry, Technical Description vdb-entry technical-description

VDB-354244 | Totolink A3300R cstecgi.cgi setSyslogCfg command injection

https://vuldb.com/vuln/354244

Signature, Permissions Required signature permissions-required

VDB-354244 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/354244/cti

Third Party Advisory third-party-advisory

Submit #779145 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection

https://vuldb.com/submit/779145

Exploit exploit

https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_rtLogServer_cmd_inject

View Exploit ZIP pw:eip

Scores

CVSS v3 7.3

EPSS 0.0193

EPSS Percentile 77.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

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