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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.

TOTOLINK A3002MU是中国TOTOLINK公司的一款双频无线网络扩展器。 TOTOLINK A3002MU Hh-B20211125.1046版本存在缓冲区错误漏洞，该漏洞源于boa组件中文件/boafrm/formFilter的formFilter函数对参数ip6addr操作不当，可能导致缓冲区溢出，攻击者可远程利用执行任意代码。

CVSS 9.9 · Critical EPSS 0.85% · P58

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Totolink A3002MU Hh-B20211125.1046 affected
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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
Vulnerability Title
TOTOLINK A3002MU 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A3002MU是中国TOTOLINK公司的一款双频无线网络扩展器。 TOTOLINK A3002MU Hh-B20211125.1046版本存在缓冲区错误漏洞，该漏洞源于boa组件中文件/boafrm/formFilter的formFilter函数对参数ip6addr操作不当，可能导致缓冲区溢出，攻击者可远程利用执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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