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CVE-2026-11620— TOTOLINK EX200 vsftpd vsftpd.conf least privilege violation

Quick assessment

Affected
TOTOLINK EX200
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TOTOLINK EX200是中国吉翁电子（TOTOLINK）公司的一款 2.4G 无线 N 范围扩展器。旨在扩大现有Wi-Fi网络的覆盖范围。 TOTOLINK EX200 4.0.3c.7646版本存在安全漏洞，该漏洞源于/etc/vsftpd.conf中的vsftpd组件存在最小权限违反，可能导致远程攻击。

CVSS 5.3 · Medium EPSS 0.29% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
TOTOLINK EX200 4.0.3c.7646 affected
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I. Basic Information for CVE-2026-11620

Vulnerability Information
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Vulnerability Title
TOTOLINK EX200 vsftpd vsftpd.conf least privilege violation
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in TOTOLINK EX200 4.0.3c.7646. This affects an unknown function of the file /etc/vsftpd.conf of the component vsftpd. The manipulation results in least privilege violation. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
最小特权原则违背
Source: CVE Program / CVE List V5
Vulnerability Title
TOTOLINK EX200 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK EX200是中国吉翁电子（TOTOLINK）公司的一款 2.4G 无线 N 范围扩展器。旨在扩大现有Wi-Fi网络的覆盖范围。 TOTOLINK EX200 4.0.3c.7646版本存在安全漏洞，该漏洞源于/etc/vsftpd.conf中的vsftpd组件存在最小权限违反，可能导致远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TOTOLINK EX200 4.0.3c.7646 cpe:2.3:o:totolink:ex200_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11620

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III. Intelligence Information for CVE-2026-11620

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Vendor Advisories for CVE-2026-11620 (1)

IV. Related Vulnerabilities

Same product: EX200
Same vendor: TOTOLINK
Same weakness: CWE-272

V. Comments for CVE-2026-11620

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