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CVE-2026-4184— D-Link DIR-816 goahead form2Wl5BasicSetup.cgi stack-based overflow

CVSS 9.8 · Critical EPSS 0.27% · P51
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I. Basic Information for CVE-2026-4184

Vulnerability Information
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Vulnerability Title
D-Link DIR-816 goahead form2Wl5BasicSetup.cgi stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was detected in D-Link DIR-816 1.10CNB05. Affected by this vulnerability is an unknown functionality of the file /goform/form2Wl5BasicSetup.cgi of the component goahead. Performing a manipulation of the argument pskValue results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
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，该漏洞源于对文件/goform/form2Wl5BasicSetup.cgi中参数pskValue的错误操作，可能导致栈缓冲区溢出攻击。
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

VendorProductAffected VersionsCPESubscribe
D-LinkDIR-816 1.10CNB05 -

II. Public POCs for CVE-2026-4184

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III. Intelligence Information for CVE-2026-4184

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Same Patch Batch · D-Link · 2026-03-15 · 11 CVEs total

CVE-2026-41839.8 CRITICALD-Link DIR-816 goahead form2WlanBasicSetup.cgi stack-based overflow
CVE-2026-41829.8 CRITICALD-Link DIR-816 goahead form2Wl5RepeaterStep2.cgi stack-based overflow
CVE-2026-41819.8 CRITICALD-Link DIR-816 goahead form2RepeaterStep2.cgi stack-based overflow
CVE-2026-41888.8 HIGHD-Link DIR-619L boa formSchedule stack-based overflow
CVE-2026-41947.3 HIGHD-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access control
CVE-2026-41937.3 HIGHD-Link DIR-823G goahead UpdateClientInfo access control
CVE-2026-41807.3 HIGHD-Link DIR-816 goahead redirect.asp access control
CVE-2026-41976.3 MEDIUMD-Link DNS-1550-04 download_mgr.cgi RSS_Item_List command injection
CVE-2026-41966.3 MEDIUMD-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injection
CVE-2026-41956.3 MEDIUMD-Link DNS-1550-04 wizard_mgr.cgi command injection

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-4184

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