CVE-2025-25635

What it is

TOTOlink A3002R V1.1.1-B20200824.0128 contains a buffer overflow vulnerability. The vulnerability arises from the improper input validation of the pppoe_dns1 parameter in the formIpv6Setup interface of /bin/boa.

At a glance

Exploitability

Can be exploited from the same network segment with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2025-02-28 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:00 UTC Last updatedMost recent change to the record

Details

Published

2025-02-28 19:15 UTC

Last modified

2026-06-17 09:00 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-120 · Classic buffer overflow

Record status

Analyzed

Affected

• Totolink a3002r Firmware 1.1.1-b20200824.0128

Attack profile CVSS 3.1 · 8.0

Attack vector

Adjacent network

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High