CVE-2025-25635 — HIGH (8.0)

Vulnerability 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.

CVSS Score

8.0

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	A3002R Firmware	1.1.1-b20200824.0128
Totolink	A3002R	-

Related Weaknesses (CWE)

CWE-120

References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/TOExploitThird Party Advisory

FAQ

What is CVE-2025-25635?

CVE-2025-25635 is a vulnerability with a CVSS score of 8.0 (HIGH). 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 o...

How severe is CVE-2025-25635?

CVE-2025-25635 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-25635?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A3002R Firmware, Totolink A3002R.