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CVE-2025-5624— D-Link DIR-816 QoSPortSetup stack-based overflow

Quick assessment

Affected
D-Link DIR-816
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.

D-Link DIR-816是中国友讯（D-Link）公司的一款无线路由器。 D-Link DIR-816 1.10CNB05版本存在安全漏洞，该漏洞源于文件/goform/QoSPortSetup中函数QoSPortSetup对参数port0_group等操作不当，可能导致栈缓冲区溢出。

CVSS 9.8 · Critical EPSS 2.49% · P84

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-5624

Vulnerability Information
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Vulnerability Title
D-Link DIR-816 QoSPortSetup stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been declared as critical. This vulnerability affects the function QoSPortSetup of the file /goform/QoSPortSetup. The manipulation of the argument port0_group/port0_remarker/ssid0_group/ssid0_remarker leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link DIR-816 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DIR-816是中国友讯（D-Link）公司的一款无线路由器。 D-Link DIR-816 1.10CNB05版本存在安全漏洞，该漏洞源于文件/goform/QoSPortSetup中函数QoSPortSetup对参数port0_group等操作不当，可能导致栈缓冲区溢出。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DIR-816 1.10CNB05 -

II. Public POCs for CVE-2025-5624

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8810 chars
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III. Intelligence Information for CVE-2025-5624

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Vendor Pages for CVE-2025-5624 (1)

Same Patch Batch · D-Link · 2025-06-05 · 4 CVEs total

CVE-2025-5630 9.8 CRITICAL D-Link DIR-816 form2lansetup.cgi stack-based overflow
CVE-2025-5623 9.8 CRITICAL D-Link DIR-816 qosClassifier stack-based overflow
CVE-2025-5622 9.8 CRITICAL D-Link DIR-816 wirelessApcli_5g stack-based overflow

IV. Related Vulnerabilities

Same product: DIR-816
Same vendor: D-Link
Same weakness: CWE-121

V. Comments for CVE-2025-5624

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