CVE-2026-76582— TRENDnet TEW-821DAP ssi ping.cgi system command injection
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| TRENDnet | TEW-821DAP | 2.2.01b05 | affected |
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I. Basic Information for CVE-2026-76582
Vulnerability Information
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Vulnerability Title
TRENDnet TEW-821DAP ssi ping.cgi system command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected is the function popen/system of the file /cgi-bin/ping.cgi of the component ssi. Executing a manipulation of the argument ipaddr can lead to command injection. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TRENDnet | TEW-821DAP | 2.2.01b05 | cpe:2.3:o:trendnet:tew-821dap_firmware:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-76582
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 9687 chars
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III. Intelligence Information for CVE-2026-76582
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Proof of Concept for CVE-2026-76582 (1)
Same Patch Batch · TRENDnet · 2026-08-19 · 8 CVEs total
| CVE-2026-76584 | 9.9 CRITICAL | TRENDnet TV-IP751WIC alphapd set_time.cgi stack-based overflow |
| CVE-2026-76589 | 9.9 CRITICAL | TRENDnet TEW-755AP mycli FUN_401000 stack-based overflow |
| CVE-2026-76590 | 9.9 CRITICAL | TRENDnet TEW-755AP ssi wan.cgi stack-based overflow |
| CVE-2026-75984 | 7.4 HIGH | TRENDnet TEW-823DRU admin.cgi command injection |
| CVE-2026-75985 | 7.4 HIGH | TRENDnet Router ping.cgi command injection |
| CVE-2026-76583 | 7.4 HIGH | TRENDnet TV-IP751WIC alphapd set_time.cgi command injection |
| CVE-2026-76591 | 7.4 HIGH | TRENDnet TEW-755AP ssi email.cgi log_email_server command injection |
IV. Related Vulnerabilities
Same product: TEW-821DAP
- CVE-2026-15487
TRENDnet TEW-821DAP Firmware Update system_ntp sub_41FBD0 os - CVE-2026-15486
TRENDnet TEW-821DAP Firmware Update tools_ddns sub_42026C os - CVE-2026-15485
TRENDnet TEW-821DAP DNS Lookup tools_nslookup sub_43F2C4 os - CVE-2026-15484
TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer ove - CVE-2026-15483
TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer ove
Same vendor: TRENDnet
- CVE-2026-76591
TRENDnet TEW-755AP ssi email.cgi log_email_server command in - CVE-2026-76590
TRENDnet TEW-755AP ssi wan.cgi stack-based overflow - CVE-2026-76589
TRENDnet TEW-755AP mycli FUN_401000 stack-based overflow - CVE-2026-76584
TRENDnet TV-IP751WIC alphapd set_time.cgi stack-based overfl - CVE-2026-76583
TRENDnet TV-IP751WIC alphapd set_time.cgi command injection
Same weakness: CWE-77
- CVE-2026-77031
Tenda CH22 formcreateFileName command injection - CVE-2026-54449
LangBot: Authenticated RCE Via MCP Configuration - CVE-2026-77004
Comfast CF-N1-S mbox-config sprintf command injection - CVE-2026-76591
TRENDnet TEW-755AP ssi email.cgi log_email_server command in - CVE-2026-76339
SPL Injection through the geostats Command in Splunk Enterpr
V. Comments for CVE-2026-76582
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