Vulnerability · Published Mar 29, 2026 · Assigned by VulDB
CVE-2026-5020Totolink A3600R Parameter cstecgi.cgi setNoticeCfg command injection
Medium 6.3
In plain English
A medium-severity command injection in A3600R from Totolink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 85% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)2.6%top 14.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-353905 | Totolink A3600R Parameter cstecgi.cgi setNoticeCfg command injection vdb-entry, technical-description
- VDB-353905 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #779536 | TOTOLINK A3600R A3600R V4.1.2cu.5182_B20201102 Command Injection third-party-advisory
- https://lavender-bicycle-a5a.notion.site/TOTOLINK_A3600R_setNoticeCfg-32253a41781f80c197eaf8e7558c5ed1?source=copy_link exploit
- https://www.totolink.net/ product