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CVE-2025-5620— D-Link DIR-816 setipsec_config os command injection

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/setipsec_config中参数localIP/remoteIP的错误操作导致os命令注入。

CVSS 7.3 · High EPSS 7.68% · P94
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I. Basic Information for CVE-2025-5620

Vulnerability Information
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Vulnerability Title
D-Link DIR-816 setipsec_config os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, was found in D-Link DIR-816 1.10CNB05. Affected is the function setipsec_config of the file /goform/setipsec_config. The manipulation of the argument localIP/remoteIP leads to os command injection. It is possible to launch the attack 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:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
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/setipsec_config中参数localIP/remoteIP的错误操作导致os命令注入。
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
D-Link DIR-816 1.10CNB05 -

II. Public POCs for CVE-2025-5620

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10133 chars
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III. Intelligence Information for CVE-2025-5620

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Vendor Pages for CVE-2025-5620 (1)

Same Patch Batch · D-Link · 2025-06-04 · 5 CVEs total

CVE-2025-5572 8.8 HIGH D-Link DCS-932L setSystemEmail stack-based overflow
CVE-2025-5621 7.3 HIGH D-Link DIR-816 qosClassifier os command injection
CVE-2025-5573 6.3 MEDIUM D-Link DCS-932L setSystemWizard setSystemControl os command injection
CVE-2025-5571 6.3 MEDIUM D-Link DCS-932L setSystemAdmin os command injection

IV. Related Vulnerabilities

Same product: DIR-816
Same vendor: D-Link
Same weakness: CWE-78

V. Comments for CVE-2025-5620

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