PT-2026-29182 · Totolink · Totolink A3300R

Lvhw · Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-5176

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 version 17.0.0cu.557 b20221024

Description A security flaw exists in Totolink A3300R version 17.0.0cu.557 b20221024. A command injection can be triggered by manipulating the argument provided to the setSyslogCfg function within the /cgi-bin/cstecgi.cgi file. This attack can be initiated remotely. The exploit has been publicly released.

Recommendations Apply a software update that addresses the vulnerability in the setSyslogCfg function of the /cgi-bin/cstecgi.cgi file.

Exploit

Fix

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

CVE-2026-5176

Affected Products

Totolink A3300R

References · 9

• 🔥 https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_rtLogServer_cmd_inject · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5176 · Security Note
• https://twitter.com/CVEarity/status/2038925904546873751 · Twitter Post
• https://vuldb.com/vuln/354244/cti · Note
• https://vuldb.com/submit/779145 · Note
• https://twitter.com/cyberbivash/status/2038836721463214313 · Twitter Post
• https://twitter.com/CVEnew/status/2038916050826428723 · Twitter Post
• https://vuldb.com/vuln/354244 · Note
• https://totolink.net · Note