Vulnerability · Published Sep 13, 2026 · Assigned by VulDB

CVE-2026-90605Totolink A3002MU boa formFilter buffer overflow

Critical 9.9

In plain English

A critical-severity buffer overflow in A3002MU from Totolink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)9.9Critical

Exploit odds (30 days)0.9%top 41.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A weakness has been identified in Totolink A3002MU Hh-B20211125.1046. This vulnerability affects the function formFilter of the file /boafrm/formFilter of the component boa. Executing a manipulation of the argument ip6addr can lead to buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

Affected products (as reported)

Vendor	Product	Versions
Totolink	A3002MU	Hh-B20211125.1046

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-403187 | Totolink A3002MU boa formFilter buffer overflow vdb-entry, technical-description
VDB-403187 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-90605 | CVE Analysis and Report third-party-advisory
Submit #914009 | totolink A3002MU Hh-B20211125.1046 Buffer Overflow third-party-advisory
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3002MU/bof-formFilter.md exploit
https://www.totolink.net/ product