CVE-2026-1327

A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Such manipulation of the argument command leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

CVSS v3 6.3 MEDIUM
CVSS v2.0 6.5 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setTracerouteCfg-2e453a41781f80df8ef9d32983758502?source=copy_link	Exploit Third Party Advisory
https://vuldb.com/?ctiid.342303	Permissions Required VDB Entry
https://vuldb.com/?id.342303	Third Party Advisory VDB Entry
https://vuldb.com/?submit.735790	Third Party Advisory VDB Entry
https://www.totolink.net/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6279_b20210910:*:*:*:*:*:*:*

cpe:2.3:h:totolink:nr1800x:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-22 15:16

Updated : 2026-01-29 17:49

NVD link : CVE-2026-1327

Mitre link : CVE-2026-1327

CVE.ORG link : CVE-2026-1327

JSON object : View

Products Affected

totolink

nr1800x
nr1800x_firmware

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

{"id": "CVE-2026-1327", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-01-22T15:16:50.967", "references": [{"url": "https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setTracerouteCfg-2e453a41781f80df8ef9d32983758502?source=copy_link", "tags": ["Exploit", "Third Party Advisory"], "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/?ctiid.342303", "tags": ["Permissions Required", "VDB Entry"], "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/?id.342303", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/?submit.735790", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cna@vuldb.com"}, {"url": "https://www.totolink.net/", "tags": ["Product"], "source": "cna@vuldb.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "cna@vuldb.com", "description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-77"}]}], "descriptions": [{"lang": "en", "value": "A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Such manipulation of the argument command leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used."}], "lastModified": "2026-01-29T17:49:23.627", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6279_b20210910:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5CFB91EF-6C07-45CB-AA17-A3D937FC9D7C"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:totolink:nr1800x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B4D2D0E8-2678-4238-8229-83450ECA1153"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}