What’s Vulnerable › Vulnerabilities

CVE-2026-5030: Totolink NR1800X Telnet Service cstecgi.cgi NTPSyncWithHost command injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-29 · updated 2026-06-17
• Weakness: CWE-74

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

• Totolink NR1800X: 9.1.0u.6279_b20210910

References

• https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-NTPSyncWithHost-32153a41781f8032afebc0802b704e9c?source=copy_link
• https://vuldb.com/submit/778529
• https://vuldb.com/vuln/353952
• https://vuldb.com/vuln/353952/cti
• https://www.totolink.net/

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