CVE-2026-5030 — MEDIUM (6.3)

Vulnerability 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.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Totolink	Nr1800X Firmware	9.1.0u.6279_b20210910
Totolink	Nr1800X	-

Related Weaknesses (CWE)

CWE-74 CWE-77

References

https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-NTPSyncWithHost-32153aExploitThird Party Advisory
https://vuldb.com/submit/778529Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/353952Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/353952/ctiPermissions RequiredVDB Entry
https://www.totolink.net/Product

FAQ

What is CVE-2026-5030?

CVE-2026-5030 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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 manipula...

How severe is CVE-2026-5030?

CVE-2026-5030 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-5030?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink Nr1800X Firmware, Totolink Nr1800X.