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CVE-2026-90605— Totolink A3002MU boa formFilter buffer overflow

Quick assessment

Affected
Totolink A3002MU
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Totolink A3002MU（固件版本 Hh-B20211125.1046）中已发现一处安全缺陷。该漏洞影响 boa 组件中 文件里的 函数。对参数 进行特定操作可能引发缓冲区溢出。此攻击可远程执行，且利用方式已向公众公开，可能被用于发动攻击。

CVSS 9.9 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-90605

Vulnerability Information
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Vulnerability Title
Totolink A3002MU boa formFilter buffer overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Totolink A3002MU Hh-B20211125.1046 cpe:2.3:a:totolink:a3002mu:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90605

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III. Intelligence Information for CVE-2026-90605

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Security Blog Posts for CVE-2026-90605 (1)

Same Patch Batch · Totolink · 2026-09-13 · 3 CVEs total

CVE-2026-90606 9.9 CRITICAL Totolink A3002MU boa formIpv6Setup buffer overflow
CVE-2026-90604 3.5 LOW Totolink A3002MU Anchor Tag cross site scripting

IV. Related Vulnerabilities

Same product: A3002MU
Same vendor: Totolink
Same weakness: CWE-120

V. Comments for CVE-2026-90605

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