Vulnerability · Published Apr 6, 2026 · Assigned by VulDB
CVE-2026-5690Totolink A7100RU cstecgi.cgi setRemoteCfg os command injection
High 7.3
In plain English
A high-severity OS command injection in A7100RU from Totolink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)1.6%top 23.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setRemoteCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used.
Affected products (as reported)
Weakness: CWE-78, CWE-77 · 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-355517 | Totolink A7100RU cstecgi.cgi setRemoteCfg os command injection vdb-entry, technical-description
- VDB-355517 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #792947 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection third-party-advisory
- https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_188/README.md exploit
- https://www.totolink.net/ product