CVE-2026-5020

A vulnerability was detected in Totolink A3600R 4.1.2cu.5182_B20201102. Affected by this issue is the function setNoticeCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument NoticeUrl results in command injection. The attack may be launched remotely. The exploit is now public 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_A3600R_setNoticeCfg-32253a41781f80c197eaf8e7558c5ed1?source=copy_link	Exploit Third Party Advisory
https://vuldb.com/submit/779536	Third Party Advisory VDB Entry
https://vuldb.com/vuln/353905	Third Party Advisory VDB Entry
https://vuldb.com/vuln/353905/cti	Permissions Required VDB Entry
https://www.totolink.net/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a3600r_firmware:4.1.2cu.5182_b20201102:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a3600r:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-29 01:15

Updated : 2026-06-17 10:58

NVD link : CVE-2026-5020

Mitre link : CVE-2026-5020

CVE.ORG link : CVE-2026-5020

JSON object : View

Products Affected

totolink

a3600r
a3600r_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')

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