🛡️ CVE-2025-25635 — a3002r-firmware

🟠 CVSS 8.0 — High ⚠️ Exploit Public CWE-120 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-25635 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2025-25635 is recorded against 1 package.

  • a3002r-firmware

Timeline and source

Published on 28 February 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-120
Public Exploit ⚠️ Yes
Source NVD
Published 2025-02-28
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
a3002r-firmware — —

Similar Threats

Exploit Protection

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CVE-2025-25635 carries CVSS 8.0 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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