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CWE

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CVE-2026-5676

Published: Apr 6, 2026

Modified: Apr 7, 2026

PUBLISHED

CVSS v3.1

7.3

HIGH

Description

A vulnerability was identified in Totolink A8000R 5.9c.681_B20180413. This issue affects the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument langType leads to missing authentication. The attack can be launched remotely. The exploit is publicly available and might be used.

Vendor	Product	Versions
Totolink	A8000R	affected `5.9c.681_B20180413`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-355503 | Totolink A8000R cstecgi.cgi setLanguageCfg missing authentication

vdb-entry

technical-description

VDB-355503 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #792433 | Totolink A8000R V5.9c.681_B20180413 Improper Authentication

third-party-advisory

https://github.com/skeetabc/CVE-TOTOLINK-A800R/blob/main/vuln1_auth_bypass.md

exploit

https://www.totolink.net/

product

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