CVE-2026-5101

A vulnerability was identified in Totolink A3300R 17.0.0cu.557_b20221024. This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might 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://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_39/README.md	Exploit Third Party Advisory
https://vuldb.com/submit/779128	Third Party Advisory VDB Entry
https://vuldb.com/vuln/354126	Third Party Advisory VDB Entry
https://vuldb.com/vuln/354126/cti	Third Party Advisory VDB Entry
https://www.totolink.net/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-29 23:16

Updated : 2026-06-17 10:58

NVD link : CVE-2026-5101

Mitre link : CVE-2026-5101

CVE.ORG link : CVE-2026-5101

JSON object : View

Products Affected

totolink

a3300r_firmware
a3300r

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')

CWE-78

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

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This affects the function setLanCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument lanIp leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used."}, {"lang": "es", "value": "Una vulnerabilidad fue identificada en Totolink A3300R 17.0.0cu.557_b20221024. Esto afecta a la funci\u00f3n setLanCfg del archivo /cgi-bin/cstecgi.cgi del componente Gestor de Par\u00e1metros. La manipulaci\u00f3n del argumento lanIp conduce a inyecci\u00f3n de comandos. La explotaci\u00f3n remota del ataque es posible. El exploit est\u00e1 disponible p\u00fablicamente y podr\u00eda ser utilizado."}], "lastModified": "2026-06-17T10:58:26.150", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DD39B647-3419-4C6D-A6A2-30F40822A27D"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7F723A73-4B32-4F9E-B5DA-80134D4711C1"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}