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CVE-2026-93739— Totolink A3002MU formWlAc 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 中发现了一个安全漏洞。该漏洞影响 文件中的 函数。攻击者通过操纵 参数，可能触发缓冲区溢出。该攻击可从远程实施。利用该漏洞的方法已公开披露，且可能被恶意利用。

CVSS 9.9 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-93739

Vulnerability Information
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Vulnerability Title
Totolink A3002MU formWlAc buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Totolink A3002MU Hh-B20211125.1046. This impacts the function formWlAc of the file /boafrm/formWlAc. Executing a manipulation of the argument submit-url can lead to buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
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-2026-93739

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III. Intelligence Information for CVE-2026-93739

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Proof of Concept for CVE-2026-93739 (1)

Same Patch Batch · Totolink · 2026-09-18 · 3 CVEs total

CVE-2026-93740 10.0 CRITICAL Totolink A3002MU formWlEncrypt buffer overflow
CVE-2026-93738 9.9 CRITICAL Totolink A3002MU formSchedule buffer overflow

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-93739

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