PT-2025-9131 · Totolink · Totolink A3002Ru

Sunnyyangyaya · Published 2025-02-28 · Updated 2025-09-02 · CVE-2025-25635

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TOTOlink A3002R version V1.1.1-B20200824.0128

Description The issue arises from a buffer overflow due to improper input validation of the pppoe dns1 parameter in the formIpv6Setup interface of the /bin/boa endpoint.

Recommendations For TOTOlink A3002R version V1.1.1-B20200824.0128, as a temporary workaround, consider restricting access to the formIpv6Setup interface in the /bin/boa endpoint to minimize the risk of exploitation. Avoid using the pppoe dns1 parameter in the affected interface until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2025-12690

CVE-2025-25635

Affected Products

Totolink A3002Ru

References · 9

• 🔥 https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/TOTOLINK-A3002R-formIpv6Setup-pppoe_dns1.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-25635 · Security Note
• https://osv.dev/vulnerability/CVE-2025-25635 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12690 · Security Note
• https://github.com/SunnyYANGyaya/firmcrosser/blob/main/ToTolink/TOTOLINK-A3002R-formIpv6Setup-pppoe_dns1.md · Note
• https://t.me/cveNotify/134086 · Telegram Post
• https://twitter.com/cybercronai/status/1896259740155457612 · Twitter Post
• https://t.me/cvedetector/19178 · Telegram Post
• https://twitter.com/CVEnew/status/1895619365586010366 · Twitter Post