CVE-2020-3376— Cisco Data Center Network Manager Authentication Bypass Vulnerability
Quick assessment
Affected
Cisco Cisco Data Center Network Manager
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.
Cisco Data Center Network Manager（DCNM）是美国思科（Cisco）公司的一套数据中心管理系统。该系统适用于Cisco Nexus和MDS系列交换机，提供存储可视化、配置和故障排除等功能。 Cisco DCNM中的设备管理器应用程序存在访问控制错误漏洞，该漏洞源于程序没有正确验证身份。攻击者可借助特制URL利用该漏洞在受影响设备上执行任意操作。以下产品及版本受到影响：Cisco DCNM 11.0(1)版本，11.1(1)版本，11.2(1)版本，11.3(1)版本。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2020-3376
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Cisco Data Center Network Manager Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions on an affected device. The vulnerability is due to a failure in the software to perform proper authentication. An attacker could exploit this vulnerability by browsing to one of the hosted URLs in Cisco DCNM. A successful exploit could allow the attacker to interact with and use certain functions within the Cisco DCNM.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Data Center Network Manager 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Data Center Network Manager（DCNM）是美国思科（Cisco）公司的一套数据中心管理系统。该系统适用于Cisco Nexus和MDS系列交换机，提供存储可视化、配置和故障排除等功能。 Cisco DCNM中的设备管理器应用程序存在访问控制错误漏洞，该漏洞源于程序没有正确验证身份。攻击者可借助特制URL利用该漏洞在受影响设备上执行任意操作。以下产品及版本受到影响：Cisco DCNM 11.0(1)版本，11.1(1)版本，11.2(1)版本，11.3(1)版本。
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 Data Center Network Manager | n/a | - |
|
II. Public POCs for CVE-2020-3376
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2020-3376
请登录查看更多情报信息。
Vendor Advisories for CVE-2020-3376 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-auth-bypass-JkubGpu3 vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2020-07-31 · 11 CVEs total
| CVE-2020-3383 | 8.8 HIGH | Cisco Data Center Network Manager Path Traversal Vulnerability |
| CVE-2020-3384 | 8.2 HIGH | Cisco Data Center Network Manager Command Injection Vulnerability |
| CVE-2020-3462 | 6.3 MEDIUM | Cisco Data Center Network Manager SQL Injection Vulnerability |
| CVE-2020-3377 | 6.3 MEDIUM | Cisco Data Center Network Manager Command Injection Vulnerability |
| CVE-2020-3461 | Cisco Data Center Network Manager Information Disclosure Vulnerability | |
| CVE-2020-3374 | Cisco SD-WAN vManage Software Authorization Bypass Vulnerability | |
| CVE-2020-3375 | Cisco SD-WAN Solution Software Buffer Overflow Vulnerability | |
| CVE-2020-3382 | Cisco Data Center Network Manager Authentication Bypass Vulnerability | |
| CVE-2020-3386 | Cisco Data Center Network Manager Improper Authorization Vulnerability | |
| CVE-2020-3460 | Cisco Data Center Network Manager Cross-Site Scripting Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco Data Center Network Manager
-
CVE-2025-20347
Cisco Nexus Dashboard Fabric Controller Unauthorized REST AP -
CVE-2025-20163
Cisco Nexus Dashboard Fabric Controller SSH Host Key Vulnera -
CVE-2020-3538
Cisco Data Center Network Manager Path Traversal Vulnerabil -
CVE-2020-3539
Cisco Data Center Network Manager Authorization Bypass Vulne -
CVE-2024-20536
Cisco Nexus Dashboard Fabric Controller SQL Injection Vulner
Same vendor: Cisco
-
CVE-2026-76504
Cisco Catalyst SD-WAN Manager System Account Authorization B -
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-20121
CIsco FTD Bypass Access List -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability
Same weakness: CWE-306
-
CVE-2026-80276
Comelit 1456B gateway exposes remote configuration password -
CVE-2026-103539
ZongXR SuperMarket Instant Buy InstantBuyController.java sta -
CVE-2026-82825
Missing proper authentication for critical APIs may allow se -
CVE-2026-103538
ZongXR SuperMarket Order Deletion Endpoint OrderController.j -
CVE-2026-103536
ZongXR Supermarket save Endpoint OrderController.java OrderC
V. Comments for CVE-2020-3376
No comments yet