CVE-2020-3162— Cisco IoT Field Network Director Denial of Service Vulnerability
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I. Basic Information for CVE-2020-3162
Vulnerability Information
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Vulnerability Title
Cisco IoT Field Network Director Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Constrained Application Protocol (CoAP) implementation of Cisco IoT Field Network Director could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of incoming CoAP traffic. An attacker could exploit this vulnerability by sending a malformed CoAP packet to an affected device. A successful exploit could allow the attacker to force the CoAP server to stop, interrupting communication to the IoT endpoints.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IoT Field Network Director Constrained Application Protocol 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IoT Field Network Director（IoT-FND）是美国思科（Cisco）公司的一套端到端的物联网管理系统。该系统具有设备管理、资产跟踪和智能计量等功能。 Cisco IoT Field Network Director中Constrained Application Protocol的实现中存在输入验证错误漏洞，该漏洞源于程序没有对传入CoAP流量进行充分地输入验证。攻击者可借助特制的CoAP数据包利用该漏洞迫使CoAP服务器停止，从而中断与IoT端点的通信。
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 |
|---|---|---|---|---|
| Cisco | Cisco IoT Field Network Director (IoT-FND) | n/a | - |
II. Public POCs for CVE-2020-3162
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-coap-dos-WTBu6YTqvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3162
Same Patch Batch · Cisco · 2020-04-15 · 17 CVEs total
| CVE-2020-3161 | Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability | |
| CVE-2020-3177 | Cisco Unified Communications Manager Path Traversal Vulnerability | |
| CVE-2020-3194 | Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne | |
| CVE-2020-3239 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3240 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3243 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3247 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3248 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3249 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3250 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3251 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3252 | Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data | |
| CVE-2020-3260 | Cisco Aironet Series Access Points Client Packet Processing Denial of Service Vulnerabilit | |
| CVE-2020-3261 | Cisco Mobility Express Software Cross-Site Request Forgery Vulnerability | |
| CVE-2020-3262 | Cisco Wireless LAN Controller CAPWAP Denial of Service Vulnerability | |
| CVE-2020-3273 | Cisco Wireless LAN Controller 802.11 Generic Advertisement Service Denial of Service Vulne |
IV. Related Vulnerabilities
Same product: Cisco IoT Field Network Director (IoT-FND)
- CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi - CVE-2026-20168
Cisco IoT Field Network Director Path Traversal Vulnerabilit - CVE-2020-3531
Cisco IoT Field Network Director Unauthenticated REST API Vu - CVE-2020-3392
Cisco IoT Field Network Director Missing API Authentication
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-20
V. Comments for CVE-2020-3162
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