What’s Vulnerable › Vulnerabilities

CVE-2026-5020: Totolink A3600R Parameter cstecgi.cgi setNoticeCfg command injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-29 · updated 2026-06-17
• Weakness: CWE-74

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

• TOTOLINK A3600R: 4.1.2cu.5182_b20201102

References

• https://lavender-bicycle-a5a.notion.site/TOTOLINK_A3600R_setNoticeCfg-32253a41781f80c197eaf8e7558c5ed1?source=copy_link
• https://vuldb.com/submit/779536
• https://vuldb.com/vuln/353905
• https://vuldb.com/vuln/353905/cti
• https://www.totolink.net/

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