CVE-2025-4835 - CVE House

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Status published High CVE-2025-4835

TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formWlanRedirect buffer overflow

8.7 CVSS

Vulnerability Description

A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formWlanRedirect of the component HTTP POST Request Handler. The manipulation of the argument redirect-url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

DaddyShark (VulDB User)

References

More from TOTOLINK

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TOTOLINK N600R cstecgi.cgi sub_4159F8 command injection

TOTOLINK X5000R cstecgi.cgi sub_410C34 command injection

TOTOLINK A702R formParentControl sub_418030 buffer overflow

TOTOLINK A702R formOneKeyAccessButton sub_4466F8 buffer overflow

TOTOLINK A702R formFilter sub_4162DC buffer overflow

Affected Vendor

TOTOLINK

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Affected Software

A702R, A3002R, A3002RU

Vulnerable Versions:

3.0.0-B20230809.1615

Timeline

Official Publish: May 17th, 2025

Last Modified: May 19th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-120 CWE-119

MITRE ATT&CK TTPs

T1203 Exploitation for Client Execution

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1055 Process Injection

Defense Evasion

T1105 Ingress Tool Transfer

Command and Control