PT-2026-20359 · Totolink · Totolink A3002Ru V3

0Xmania · Published 2026-02-17 · Updated 2026-03-16 · CVE-2026-26736

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TOTOLINK A3002RU V3 version 3.0.0-B20220304.1804

Description The TOTOLINK A3002RU V3 router firmware contains a stack-based buffer overflow. The issue is located in the formIpv6Setup function through the static ipv6 parameter.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2026-26736

Affected Products

Totolink A3002Ru V3

References · 10

• 🔥 https://github.com/0xmania/cve/tree/main/TOTOLINK-A3002RUV3.0-boa-formIpv6Setup-StackOverflow · Exploit
• https://osv.dev/vulnerability/CVE-2026-26736 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-26736 · Security Note
• https://t.me/CVEtracker/44899 · Telegram Post
• https://twitter.com/infoflowcloud/status/2031138331942179263 · Twitter Post
• https://twitter.com/DavidMarquet19/status/2033453252365185071 · Twitter Post
• https://t.me/cveNotify/154834 · Telegram Post
• https://t.me/cveNotify/152571 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2023862095712862695 · Twitter Post
• https://twitter.com/CVEnew/status/2031137206694478284 · Twitter Post