CVE-2026-5020 | THREATINT

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.

PUBLISHED Reserved 2026-03-27 | Published 2026-03-29 | Updated 2026-04-01 | Assigner VulDB

MEDIUM: 5.3CVSS: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

MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Command Injection

Injection

Product status

4.1.2cu.5182_B20201102

affected

Timeline

2026-03-27:	Advisory disclosed
2026-03-27:	VulDB entry created
2026-03-27:	VulDB entry last update

Credits

wxhwxhwxh_mie (VulDB User) reporter

References

vuldb.com/vuln/353905 (VDB-353905 | Totolink A3600R Parameter cstecgi.cgi setNoticeCfg command injection) vdb-entry technical-description

vuldb.com/vuln/353905/cti (VDB-353905 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/779536 (Submit #779536 | TOTOLINK A3600R A3600R V4.1.2cu.5182_B20201102 Command Injection) third-party-advisory

lavender-bicycle-a5a.notion.site/...58c5ed1?source=copy_link exploit

www.totolink.net/ product

cve.org (CVE-2026-5020)

nvd.nist.gov (CVE-2026-5020)

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