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I. Basic Information for CVE-2026-5212
Vulnerability Information
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Vulnerability Title
D-Link DNS-1550-04 webdav_mgr.cgi Webdav_Upload_File stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This issue affects the function Webdav_Upload_File of the file /cgi-bin/webdav_mgr.cgi. The manipulation of the argument f_file leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DNS-327L等都是中国友讯（D-Link）公司的产品。D-Link DNS-327L是一款NAS（网络附属存储）设备。D-Link DNS-340L是一款NAS（网络附属存储）设备。D-Link DNS-120是一个网络存储适配器。 D-Link多款产品存在安全漏洞，该漏洞源于对文件/cgi-bin/webdav_mgr.cgi中参数f_file的错误操作导致栈缓冲区溢出。以下产品和版本受到影响：DNS-120 20260205及之前版本、DNR-202L 20260205及之前版本、D
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
VendorProductAffected VersionsCPESubscribe
D-LinkDNS-120 20260205 -
D-LinkDNR-202L 20260205 -
D-LinkDNS-315L 20260205 -
D-LinkDNS-320 20260205 -
D-LinkDNS-320L 20260205 -
D-LinkDNS-320LW 20260205 -
D-LinkDNS-321 20260205 -
D-LinkDNR-322L 20260205 -
D-LinkDNS-323 20260205 -
D-LinkDNS-325 20260205 -
D-LinkDNS-326 20260205 -
D-LinkDNS-327L 20260205 -
D-LinkDNR-326 20260205 -
D-LinkDNS-340L 20260205 -
D-LinkDNS-343 20260205 -
D-LinkDNS-345 20260205 -
D-LinkDNS-726-4 20260205 -
D-LinkDNS-1100-4 20260205 -
D-LinkDNS-1200-05 20260205 -
D-LinkDNS-1550-04 20260205 -
II. Public POCs for CVE-2026-5212
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III. Intelligence Information for CVE-2026-5212
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IV. Related Vulnerabilities
Same product: DNS-120
Same vendor: D-Link
Same weakness: CWE-121
V. Comments for CVE-2026-5212

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