What is the severity of CVE-2025-4835?

CVE-2025-4835 has been declared as critical.

Which devices are affected by CVE-2025-4835?

CVE-2025-4835 affects TOTOLINK A702R, A3002R, and A3002RU devices running firmware version 3.0.0-B20230809.1615.

How do I fix CVE-2025-4835?

To fix CVE-2025-4835, update the firmware of your TOTOLINK devices to the latest version provided by the vendor.

What type of vulnerability is CVE-2025-4835?

CVE-2025-4835 is a vulnerability in the HTTP POST Request Handler related to an unknown functionality.

What impact does CVE-2025-4835 have on affected devices?

CVE-2025-4835 could potentially allow unauthorized access or manipulation of the affected TOTOLINK devices.

Vulnerability/
CVE-2025-4835

critical

CWE

120 119

EPSS

0.077%

17/5/2025

CVE-2025-4835: TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formWlanRedirect buffer overflow

First published: Sat May 17 2025(Updated: )

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.

Credit: cna@vuldb.com

Affected Software	Affected Version	How to fix
Totolink A702r Firmware
Totolink A3002r Firmware
TOTOLINK A3002R

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2025-4835?
CVE-2025-4835 has been declared as critical.
Which devices are affected by CVE-2025-4835?
CVE-2025-4835 affects TOTOLINK A702R, A3002R, and A3002RU devices running firmware version 3.0.0-B20230809.1615.
How do I fix CVE-2025-4835?
To fix CVE-2025-4835, update the firmware of your TOTOLINK devices to the latest version provided by the vendor.
What type of vulnerability is CVE-2025-4835?
CVE-2025-4835 is a vulnerability in the HTTP POST Request Handler related to an unknown functionality.
What impact does CVE-2025-4835 have on affected devices?
CVE-2025-4835 could potentially allow unauthorized access or manipulation of the affected TOTOLINK devices.

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agent/last-modified-date
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collector/epss-latest
source/FIRST
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vendor/totolink
canonical/totolink a702r firmware
canonical/totolink a3002r firmware
canonical/totolink a3002r

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