CVE-2026-5844— D-Link DIR-882 HNAP1 SetNetworkSettings prog.cgi sprintf os command injection
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I. Basic Information for CVE-2026-5844
Vulnerability Information
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Vulnerability Title
D-Link DIR-882 HNAP1 SetNetworkSettings prog.cgi sprintf os command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in D-Link DIR-882 1.01B02. Impacted is the function sprintf of the file prog.cgi of the component HNAP1 SetNetworkSettings Handler. The manipulation of the argument IPAddress results in os command injection. The attack may be performed from remote. The exploit has been made public and could 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:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
D-Link DIR-882 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DIR-882是中国友讯（D-Link）公司的一款双频无线路由器。 D-Link DIR-882 1.01B02版本存在操作系统命令注入漏洞，该漏洞源于HNAP1 SetNetworkSettings Handler组件中prog.cgi文件sprintf函数对参数IPAddress的错误操作，可能导致os命令注入攻击。
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)
Affected Products
II. Public POCs for CVE-2026-5844
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Same Patch Batch · D-Link · 2026-04-09 · 7 CVEs total
| CVE-2026-5984 | 8.8 HIGH | D-Link DIR-605L POST Request formSetLog buffer overflow |
| CVE-2026-5983 | 8.8 HIGH | D-Link DIR-605L POST Request formSetDDNS buffer overflow |
| CVE-2026-5982 | 8.8 HIGH | D-Link DIR-605L POST Request formAdvNetwork buffer overflow |
| CVE-2026-5981 | 8.8 HIGH | D-Link DIR-605L POST Request formAdvFirewall buffer overflow |
| CVE-2026-5980 | 8.8 HIGH | D-Link DIR-605L POST Request formSetMACFilter buffer overflow |
| CVE-2026-5979 | 8.8 HIGH | D-Link DIR-605L POST Request formVirtualServ buffer overflow |
IV. Related Vulnerabilities
Same vendor: D-Link
- CVE-2026-8273
D-Link DNS-320 system_mgr.cgi cgi_merge_user os command inje - CVE-2026-8272
D-Link DNS-320 webfile_mgr.cgi chown os command injection - CVE-2026-8271
D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command inje - CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow
Same weakness: CWE-78
- CVE-2026-8273
D-Link DNS-320 system_mgr.cgi cgi_merge_user os command inje - CVE-2026-8272
D-Link DNS-320 webfile_mgr.cgi chown os command injection - CVE-2026-8271
D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command inje - CVE-2026-8265
Tenda AC6 httpd getLogFile get_log_file os command injection - CVE-2026-8264
Tenda AC6 httpd WifiApScan formWifiApScan os command injecti
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