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CVE-2020-3543— Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Memory Leak Vulnerability

Quick assessment

Affected
Cisco Cisco Video Surveillance 8000 Series IP Cameras
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 Video Surveillance 8000 Series IP Cameras是美国思科（Cisco）公司的一款视频监控摄像头。 Cisco Video Surveillance 8000 Series IP Cameras 中存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。

CVSS 6.5 · Medium EPSS 0.45% · P38
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I. Basic Information for CVE-2020-3543

Vulnerability Information
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Vulnerability Title
Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Memory Leak Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Cisco Discovery Protocol of Cisco Video Surveillance 8000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause a memory leak, which could lead to a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect processing of certain Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending certain Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the affected device to continuously consume memory, which could cause the device to crash and reload, resulting in a DOS condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Video Surveillance 8000 Series IP Cameras 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Video Surveillance 8000 Series IP Cameras是美国思科（Cisco）公司的一款视频监控摄像头。 Cisco Video Surveillance 8000 Series IP Cameras 中存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
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 Video Surveillance 8000 Series IP Cameras n/a -

II. Public POCs for CVE-2020-3543

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III. Intelligence Information for CVE-2020-3543

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Vendor Advisories for CVE-2020-3543 (1)

Same Patch Batch · Cisco · 2020-10-08 · 14 CVEs total

CVE-2020-3544 8.8 HIGH Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Remote Code Execu
CVE-2020-3535 7.8 HIGH Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability
CVE-2020-3598 6.5 MEDIUM Cisco Vision Dynamic Signage Director Missing Authentication Vulnerability
CVE-2020-3567 6.5 MEDIUM Cisco Industrial Network Director Denial of Service Vulnerability
CVE-2020-3602 6.3 MEDIUM Cisco StarOS Privilege Escalation Vulnerability
CVE-2020-3596 5.9 MEDIUM Cisco Expressway Series and TelePresence Video Communication Server Denial of Service Vuln
CVE-2020-3568 5.8 MEDIUM Cisco Email Security Appliance URL Filtering Bypass Vulnerability
CVE-2020-3597 5.4 MEDIUM Cisco Nexus Data Broker Software Path Traversal Vulnerability
CVE-2020-3589 4.8 MEDIUM Cisco Identity Services Engine Cross-Site Scripting Vulnerability
CVE-2020-3601 4.4 MEDIUM Cisco StarOS Privilege Escalation Vulnerability
CVE-2020-3536 Cisco SD-WAN vManage Cross-Site Scripting Vulnerability
CVE-2020-3467 Cisco Identity Services Engine Authorization Bypass Vulnerability
CVE-2020-3320 Cisco Firepower Management Center Cross-Site Scripting Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Video Surveillance 8000 Series IP Cameras
Same vendor: Cisco
Same weakness: CWE-400

V. Comments for CVE-2020-3543

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