VulnerabilityAnalyzed

CVE-2026-5020

A vulnerability was detected in Totolink A3600R 4.1.2cu.5182_B20201102.

LOW 2.1EPSS 2.55%

Does this matter?

Lower severity and a low EPSS score (2.55%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 4.0: 2.1 LOWCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 2.55% probability · 85th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-74, CWE-77
Affected: totolink/a3600r firmware
Source: cna@vuldb.com

EPSS trend

EPSS moved from 3.7% on 24 September 2026 to 2.6% on 27 October 2026.

References

https://lavender-bicycle-a5a.notion.site/TOTOLINK_A3600R_setNoticeCfg-32253a41781f80c197eaf8e7558c5ed1?source=copy_linkExploit, Third Party Advisory
https://vuldb.com/submit/779536Third Party Advisory, VDB Entry
https://vuldb.com/vuln/353905Third Party Advisory, VDB Entry
https://vuldb.com/vuln/353905/ctiPermissions Required, VDB Entry
https://www.totolink.net/Product

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.