CVE-2026-5020 Details
Description
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.
A command injection vulnerability has been identified in the Totolink A3600R router running firmware version 4.1.2cu.5182_B20201102. The issue arises in the setNoticeCfg function within the Parameter Handler component, specifically in the file /cgi-bin/cstecgi.cgi. The vulnerability allows for remote exploitation by manipulating the NoticeUrl parameter, which is user-controllable. The exploitation of this vulnerability could lead to unauthorized command execution on the device.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://lavender-bicycle-a5a.notion.site/TOTOLINK_A3600R_setNoticeCfg-32253a41781f80c197eaf8e7558c5ed1?source=copy_link | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/779536 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/353905 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/353905/cti | [email protected] | Permissions RequiredVDB Entry |
| https://www.totolink.net/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| totolink a3600r firmware | 4.1.2cu.5182_b20201102 |
CPE
Remediation
| |
| totolink a3600r | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 30, 2026 | Initial Analysis | [email protected] |
| Mar 29, 2026 | New CVE Received | [email protected] |