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ID

VAR-202603-5281


CVE

CVE-2026-5030


TITLE

TOTOLINK of nr1800x  Multiple vulnerabilities in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2026-009443

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. The exploit is publicly available and could be misused.All information handled by the software may be leaked to the outside. All information handled by the software may be rewritten. Furthermore, the software may stop working completely. Furthermore, attacks that exploit this vulnerability will not affect other software

Trust: 1.62

sources: NVD: CVE-2026-5030 // JVNDB: JVNDB-2026-009443

AFFECTED PRODUCTS

vendor:totolinkmodel:nr1800xscope:eqversion:9.1.0u.6279_b20210910

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vendor:totolinkmodel:nr1800xscope:eqversion: -

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vendor:totolinkmodel:nr1800xscope:eqversion:nr1800x firmware 9.1.0u.6279_b20210910

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vendor:totolinkmodel:nr1800xscope: - version: -

Trust: 0.8

sources: JVNDB: JVNDB-2026-009443 // NVD: CVE-2026-5030

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-5030
value: LOW

Trust: 1.0

nvd@nist.gov: CVE-2026-5030
value: CRITICAL

Trust: 1.0

OTHER: JVNDB-2026-009443
value: CRITICAL

Trust: 0.8

cna@vuldb.com: CVE-2026-5030
severity: MEDIUM
baseScore: 6.5
vectorString: AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

OTHER: JVNDB-2026-009443
severity: MEDIUM
baseScore: 6.5
vectorString: AV:N/AC:L/AU:S/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

cna@vuldb.com: CVE-2026-5030
baseSeverity: MEDIUM
baseScore: 6.3
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: LOW
exploitabilityScore: 2.8
impactScore: 3.4
version: 3.1

Trust: 1.0

nvd@nist.gov: CVE-2026-5030
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: JVNDB-2026-009443
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: JVNDB: JVNDB-2026-009443 // NVD: CVE-2026-5030 // NVD: CVE-2026-5030

PROBLEMTYPE DATA

problemtype:CWE-74

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problemtype:CWE-77

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problemtype:injection (CWE-74) [ others ]

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problemtype: Command injection (CWE-77) [NVD evaluation ]

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problemtype: Command injection (CWE-77) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2026-009443 // NVD: CVE-2026-5030

PATCH

title://vuldb.com/vuln/353952url:https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-NTPSyncWithHost-32153a41781f8032afebc0802b704e9c?source=copy_link

Trust: 0.8

sources: JVNDB: JVNDB-2026-009443

EXTERNAL IDS

db:NVDid:CVE-2026-5030

Trust: 2.6

db:JVNDBid:JVNDB-2026-009443

Trust: 0.8

sources: JVNDB: JVNDB-2026-009443 // NVD: CVE-2026-5030

REFERENCES

url:https://www.totolink.net/

Trust: 1.8

url:https://vuldb.com/vuln/353952/cti

Trust: 1.0

url:https://lavender-bicycle-a5a.notion.site/totolink-nr1800x-ntpsyncwithhost-32153a41781f8032afebc0802b704e9c?source=copy_link

Trust: 1.0

url:https://vuldb.com/submit/778529

Trust: 1.0

url:https://vuldb.com/vuln/353952

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2026-5030

Trust: 0.8

sources: JVNDB: JVNDB-2026-009443 // NVD: CVE-2026-5030

SOURCES

db:JVNDBid:JVNDB-2026-009443
db:NVDid:CVE-2026-5030

LAST UPDATE DATE

2026-04-03T23:44:56.804000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2026-009443date:2026-04-01T02:29:00
db:NVDid:CVE-2026-5030date:2026-03-30T19:00:29.037

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2026-009443date:2026-04-01T00:00:00
db:NVDid:CVE-2026-5030date:2026-03-29T05:15:55.603