Vulnerability · Published Mar 29, 2026 · Assigned by VulDB
CVE-2026-5030Totolink NR1800X Telnet Service cstecgi.cgi NTPSyncWithHost command injection
Medium 6.3
In plain English
A medium-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 2.6% (higher than 85% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)2.6%top 14.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability has been found in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument host_time leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Affected products (as reported)
Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-353952 | Totolink NR1800X Telnet Service cstecgi.cgi NTPSyncWithHost command injection vdb-entry, technical-description
- VDB-353952 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #778529 | TOTOLINK NR1800X NR1800X_Firmware V9.1.0u.6279_B20210910 Command Injection third-party-advisory
- https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-NTPSyncWithHost-32153a41781f8032afebc0802b704e9c?source=copy_link exploit
- https://www.totolink.net/ product