Vulnerability · Published Aug 31, 2026 · Assigned by VulDB
CVE-2026-82597TOTOLINK NR1800X cstecgi.cgi setUssd command injection
High 7.4
In plain English
A high-severity command injection in NR1800X from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities).
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)1.8%top 21.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was identified in TOTOLINK NR1800X 9.1.0u.6681_B20230703. This affects the function setUssd of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ussd leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used.
Affected products (as reported)
Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-397092 | TOTOLINK NR1800X cstecgi.cgi setUssd command injection vdb-entry, technical-description
- VDB-397092 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-82597 | CVE Analysis and Report third-party-advisory
- Submit #892696 | TOTOLINK NR1800X V9.1.0u.6681_B20230703 Command Injection third-party-advisory
- https://github.com/lxiansheng488-bit/-/blob/main/TOTOlink/totolink%20setuuid%E5%91%BD%E4%BB%A4%E6%B3%A8%E5%85%A5.pdf exploit
- https://www.totolink.net/ product