CVE-2026-36540
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Netis AC1200是中国天旦（Netis）公司的一系列双频无线宽带路由器。 Netis AC1200 V4.0.1.4296版本存在安全漏洞，该漏洞源于/cgi-bin/skk_set.cgi端点中password和new_pwd_confirm POST参数未经清理直接传递给底层OS shell，攻击者可通过反引号包裹并base64编码注入任意shell命令，导致远程代码执行。
Possible ATT&CK Techniques 3 AI
T1068 · Exploitation for Privilege Escalation T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-36540
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Netis AC1200 Router NC21 V4.0.1.4296 is vulnerable to unauthenticated command injection via the /cgi-bin/skk_set.cgi endpoint. The password and new_pwd_confirm POST parameters are passed directly to the underlying OS shell without sanitization. An attacker can inject arbitrary shell commands by wrapping them in backticks (`) and encoding them in base64. Because the endpoint requires no authentication, any device on the LAN can achieve full Remote Code Execution on the router's operating system with a single HTTP POST request.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Netis AC1200 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netis AC1200是中国天旦（Netis）公司的一系列双频无线宽带路由器。 Netis AC1200 V4.0.1.4296版本存在安全漏洞，该漏洞源于/cgi-bin/skk_set.cgi端点中password和new_pwd_confirm POST参数未经清理直接传递给底层OS shell，攻击者可通过反引号包裹并base64编码注入任意shell命令，导致远程代码执行。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2026-36540
| # | POC Description | Source Link | Shenlong Link |
|---|
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Security Blog Posts for CVE-2026-36540 (1)
Vendor Pages for CVE-2026-36540 (1)
Same Patch Batch · n/a · 2026-05-27 · 28 CVEs total
| CVE-2026-36044 | 8.8 HIGH | Pensar Apex 安全漏洞 |
| CVE-2026-4390 | 5.4 MEDIUM | TeamSpeak 3 Server Connection State Management process_resend_queue use after free |
| CVE-2026-4392 | 5.3 MEDIUM | TeamSpeak 3 Server clientek Handshake assertion |
| CVE-2026-4391 | 5.3 MEDIUM | TeamSpeak 3 Server ECC Key heap-based overflow |
| CVE-2026-38930 | OpenRapid RapidCMS 安全漏洞 | |
| CVE-2026-36045 | PicoClaw 安全漏洞 | |
| CVE-2026-36538 | Netis AC1200 安全漏洞 | |
| CVE-2026-36539 | Netis AC1200 安全漏洞 | |
| CVE-2026-33552 | Northern.tech Mender Enterprise Server 安全漏洞 | |
| CVE-2026-49009 | Northern.tech Mender Server 安全漏洞 | |
| CVE-2025-69600 | RayVentory Scan Engine 安全漏洞 | |
| CVE-2025-67903 | Northern.tech Mender Client 安全漏洞 | |
| CVE-2026-38808 | uzy-ssm-mall 安全漏洞 | |
| CVE-2026-38807 | kvf-admin 安全漏洞 | |
| CVE-2025-70116 | GPAC MP4Box 安全漏洞 | |
| CVE-2025-68712 | Spsoft APPLOCK 安全漏洞 | |
| CVE-2026-38422 | Tasmota 安全漏洞 | |
| CVE-2026-38931 | SimplePHP 安全漏洞 | |
| CVE-2026-38945 | RayVentory Scan Engine 安全漏洞 | |
| CVE-2025-70103 | libjxl 安全漏洞 |
Showing top 20 of 28 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-36540
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