Vulnerability · Published Mar 31, 2026 · Assigned by VulDB
CVE-2026-5176Totolink A3300R cstecgi.cgi setSyslogCfg command injection
High 7.3
In plain English
A high-severity command injection in A3300R from Totolink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 82% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)2.2%top 17.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-354244 | Totolink A3300R cstecgi.cgi setSyslogCfg command injection vdb-entry, technical-description
- VDB-354244 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #779145 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection third-party-advisory
- https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_rtLogServer_cmd_inject exploit
- https://www.totolink.net/ product