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CVE-2025-4733— TOTOLINK A3002R/A3002RU HTTP POST Request formIpQoS buffer overflow

Quick assessment

Affected
TOTOLINK A3002R
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TOTOLINK A3002RU和TOTOLINK A3002R都是中国吉翁电子（TOTOLINK）公司的产品。TOTOLINK A3002RU是一款无线路由器产品。TOTOLINK A3002R是一款无线路由器。 TOTOLINK A3002RU和TOTOLINK A3002R 3.0.0-B20230809.1615版本存在安全漏洞，该漏洞源于文件/boafrm/formIpQoS中参数mac处理不当，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.79% · P53
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I. Basic Information for CVE-2025-4733

Vulnerability Information
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Vulnerability Title
TOTOLINK A3002R/A3002RU HTTP POST Request formIpQoS buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This issue affects some unknown processing of the file /boafrm/formIpQoS of the component HTTP POST Request Handler. The manipulation of the argument mac leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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 A3002RU和TOTOLINK A3002R 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A3002RU和TOTOLINK A3002R都是中国吉翁电子（TOTOLINK）公司的产品。TOTOLINK A3002RU是一款无线路由器产品。TOTOLINK A3002R是一款无线路由器。 TOTOLINK A3002RU和TOTOLINK A3002R 3.0.0-B20230809.1615版本存在安全漏洞，该漏洞源于文件/boafrm/formIpQoS中参数mac处理不当，可能导致缓冲区溢出。
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 A3002R 3.0.0-B20230809.1615 -
TOTOLINK A3002RU 3.0.0-B20230809.1615 -

II. Public POCs for CVE-2025-4733

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9138 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
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POC zip download
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III. Intelligence Information for CVE-2025-4733

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Same Patch Batch · TOTOLINK · 2025-05-16 · 4 CVEs total

CVE-2025-4732 8.8 HIGH TOTOLINK A3002R/A3002RU HTTP POST Request formFilter buffer overflow
CVE-2025-4731 8.8 HIGH TOTOLINK A3002R/A3002RU HTTP POST Request formPortFw buffer overflow
CVE-2025-4730 8.8 HIGH TOTOLINK A3002R/A3002RU HTTP POST Request formMapDel buffer overflow

IV. Related Vulnerabilities

Same product: A3002R
Same vendor: TOTOLINK
Same weakness: CWE-120

V. Comments for CVE-2025-4733

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