CVE-2021-34782— Cisco DNA Center Information Disclosure Vulnerability
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I. Basic Information for CVE-2021-34782
Vulnerability Information
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Vulnerability Title
Cisco DNA Center Information Disclosure Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the API endpoints for Cisco DNA Center could allow an authenticated, remote attacker to gain access to sensitive information that should be restricted. The attacker must have valid device credentials. This vulnerability is due to improper access controls on API endpoints. An attacker could exploit the vulnerability by sending a specific API request to an affected application. A successful exploit could allow the attacker to obtain sensitive information about other users who are configured with higher privileges on the application.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过数据查询的敏感数据暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco DNA Center 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco DNA Center是美国思科（Cisco）公司的一个网络管理和命令中心服务。 Cisco DNA Center 存在安全漏洞，该漏洞源于对 API 端点的访问控制不当。攻击者可以通过向受影响的应用程序发送特定的 API 请求来利用该漏洞。成功的利用可能允许攻击者获取有关在应用程序上配置有更高权限的其他用户的敏感信息。
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 Digital Network Architecture Center (DNA Center) | n/a | - |
II. Public POCs for CVE-2021-34782
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnac-infodisc-KyC6YncSvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-34782
Same Patch Batch · Cisco · 2021-10-06 · 23 CVEs total
| CVE-2021-34710 | 8.8 HIGH | Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities |
| CVE-2021-34735 | 8.8 HIGH | Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities |
| CVE-2021-34748 | 8.8 HIGH | Cisco Intersight Virtual Appliance Command Injection Vulnerability |
| CVE-2021-34698 | 8.6 HIGH | Cisco Web Security Appliance Proxy Service Denial of Service Vulnerability |
| CVE-2021-1594 | 7.5 HIGH | Cisco Identity Services Engine Privilege Escalation Vulnerability |
| CVE-2021-34788 | 7.0 HIGH | Cisco AnyConnect Secure Mobility Client for Linux and Mac OS with VPN Posture (HostScan) M |
| CVE-2021-34706 | 6.4 MEDIUM | Cisco Identity Services Engine XML External Entity Injection Vulnerability |
| CVE-2021-34742 | 6.1 MEDIUM | Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability |
| CVE-2021-1534 | 5.8 MEDIUM | Cisco Email Security Appliance URL Filtering Bypass Vulnerability |
| CVE-2021-34711 | 5.5 MEDIUM | Cisco IP Phone Software Arbitrary File Read Vulnerability |
| CVE-2021-34766 | 5.4 MEDIUM | Cisco Smart Software Manager Privilege Escalation Vulnerability |
| CVE-2021-34744 | 4.9 MEDIUM | Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities |
| CVE-2021-34757 | 4.9 MEDIUM | Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities |
| CVE-2021-34772 | 4.7 MEDIUM | Cisco Orbital Open Redirect Vulnerability |
| CVE-2021-34758 | 4.4 MEDIUM | Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerabi |
| CVE-2021-34775 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34776 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34777 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34778 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34779 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
Showing top 20 of 23 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Digital Network Architecture Center (DNA Center)
- CVE-2025-20346
Cisco Catalyst Center Privilege Escalation Vulnerability - CVE-2025-20355
Cisco Catalyst Center Software HTTP Open Redirect Vulnerabil - CVE-2025-20353
Cisco Catalyst Center Cross-Site Scripting Vulnerability - CVE-2025-20349
Cisco DNA Center API Command Injection Vulnerability - CVE-2025-20341
Cisco Catalyst Center Privilege Escalation Vulnerability
Same vendor: Cisco
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Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
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Same weakness: CWE-202
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Vendure vulnerable to timing attack that enables user enumer - CVE-2025-64528
Users are able to find users by name even when `enable_names
V. Comments for CVE-2021-34782
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