Home/CVE/A vulnerability has been found in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function NTPSyncWithHos
CVE

CVE-2026-5030

A vulnerability has been found in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function NTPSyncWithHos

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.

MEDIUM · CVSS 6.3 EPSS 0.01919
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
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Affected Products & Versions

1
totolink nr1800x firmwareall versions
⚠

Public Exploits & PoCs

1
poclavender-bicycle-a5a.notion.site · TOTOLINK-NR1800X-NTPSyncWithHost-32153a41781f8032afebc080...lavender-bicycle-a5a.notion.site
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Scoring & Timeline

6.3
MEDIUM · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Mar 2026 · 05:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
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