CVE-2025-6393: TOTOLINK A702R/A3002R/A3002RU/EX1200T HTTP POST Request formIPv6Addr buffer overflow

Published Jun 21, 2025
·
Updated

A vulnerability was found in TOTOLINK A702R, A3002R, A3002RU and EX1200T 3.0.0-B20230809.1615/4.0.0-B20230531.1404/4.0.0-B20230721.1521/4.1.2cu.5232B20210713. It has been classified as critical. Affected is an unknown function of the file /boafrm/formIPv6Addr of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected Software

12 affected components
TOTOLINK A702R=3.0.0-B20230809.1615
TOTOLINK A3002R=4.0.0-B20230531.1404
TOTOLINK A3002RU=4.0.0-B20230721.1521
TOTOLINK EX1200T=4.1.2cu.5232_B20210713
All of the following
TOTOLINK A3002ru Firmware=3.0.0-b20230809.1615
TOTOLINK A3002RU
All of the following
TOTOLINK A3002R Firmware=4.0.0-b20230531.1404
TOTOLINK A3002R
All of the following
TOTOLINK A702r Firmware=4.0.0-b20230721.1521
TOTOLINK A702R
All of the following
TOTOLINK EX1200T firmware=4.1.2cu.5232_b20210713
TOTOLINK EX1200T

Event History

Jun 21, 2025
CVE Published
via MITRE·01:00 AM
Data Sourced
via MITRE·01:00 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:15 AM
DescriptionSeverityWeaknessAffected Software
Jun 12, 58473
Event
via NVD·05:16 AM
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Frequently Asked Questions

1

What is the severity of CVE-2025-6393?

CVE-2025-6393 has been classified as a critical vulnerability.

2

Which devices are affected by CVE-2025-6393?

Devices affected by CVE-2025-6393 include TOTOLINK A702R, A3002R, A3002RU, and EX1200T running specified firmware versions.

3

How can I mitigate the risk of CVE-2025-6393?

To mitigate CVE-2025-6393, users should update their devices to the latest firmware version provided by TOTOLINK.

4

What type of vulnerability is CVE-2025-6393?

CVE-2025-6393 is an HTTP function vulnerability that affects the component handling IPv6 addresses.

5

Is there a public exploit available for CVE-2025-6393?

As of now, details about specific exploits for CVE-2025-6393 have not been publicly disclosed.

Contact

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