CVE-2026-5676

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.

CVSS v3 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/skeetabc/CVE-TOTOLINK-A800R/blob/main/vuln1_auth_bypass.md
https://vuldb.com/submit/792433
https://vuldb.com/vuln/355503
https://vuldb.com/vuln/355503/cti
https://www.totolink.net/

Configurations

No configuration.

History

24 Jul 2026, 09:10

Type	Values Removed	Values Added
Summary		(es) Se identificó una vulnerabilidad en Totolink A8000R 5.9c.681_B20180413. Este problema afecta a la función setLanguageCfg del archivo /cgi-bin/cstecgi.cgi. Dicha manipulación del argumento langType conduce a la ausencia de autenticación. El ataque puede lanzarse de forma remota. El exploit está disponible públicamente y podría usarse.

06 Apr 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-06 19:16

Updated : 2026-07-24 09:10

NVD link : CVE-2026-5676

Mitre link : CVE-2026-5676

CVE.ORG link : CVE-2026-5676

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

CWE-306

Missing Authentication for Critical Function

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