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Cisco — Vulnerabilities & Security Advisories 3365

Browse all 3365 CVE security advisories affecting Cisco. AI-powered Chinese analysis, POCs, and references for each vulnerability.

Cisco Systems operates as a global leader in networking hardware, software, and telecommunications services, providing critical infrastructure for enterprise connectivity and cloud security. With over 3,000 recorded CVEs, the company’s attack surface is extensive, reflecting the complexity of its diverse product portfolio. Historically, vulnerabilities frequently involve remote code execution (RCE), cross-site scripting (XSS), and privilege escalation flaws, often stemming from legacy protocols or complex configuration interfaces. Notable incidents include the 2023 supply chain compromise affecting the Cisco AnyConnect Secure Mobility Client, which allowed attackers to bypass authentication mechanisms. These breaches highlight risks associated with widely deployed endpoint security agents. The sheer volume of disclosed issues underscores the challenges inherent in maintaining security across such a vast ecosystem of interconnected devices and software solutions, requiring rigorous patch management and continuous monitoring to mitigate potential exploitation by threat actors targeting critical network infrastructure.

CVE ID Title CVSS Severity Published
CVE-2021-1543 Cisco Small Business 220 Series Smart Switches Vulnerabilities — Cisco Small Business 220 Series Smart Plus Switches CWE-287 7.2 High 2021-06-16
CVE-2021-1566 Cisco Email Security Appliance and Cisco Web Security Appliance Certificate Validation Vulnerability — Cisco Web Security Appliance (WSA) CWE-296 7.4 High 2021-06-16
CVE-2021-1567 Cisco AnyConnect Secure Mobility Client for Windows with VPN Posture (HostScan) Module DLL Hijacking Vulnerability — Cisco AnyConnect Secure Mobility Client CWE-367 7.0 High 2021-06-16
CVE-2021-1568 Cisco AnyConnect Secure Mobility Client for Windows Denial of Service Vulnerability — Cisco AnyConnect Secure Mobility Client CWE-789 5.5 Medium 2021-06-16
CVE-2021-1569 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities — Cisco Jabber CWE-399 6.5 Medium 2021-06-16
CVE-2021-1570 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities — Cisco Jabber CWE-399 6.5 Medium 2021-06-16
CVE-2021-1571 Cisco Small Business 220 Series Smart Switches Vulnerabilities — Cisco Small Business 220 Series Smart Plus Switches CWE-287 7.2 High 2021-06-16
CVE-2021-1541 Cisco Small Business 220 Series Smart Switches Vulnerabilities — Cisco Small Business 220 Series Smart Plus Switches CWE-287 7.2 High 2021-06-16
CVE-2021-1524 Cisco Meeting Server API Denial of Service Vulnerability — Cisco Meeting Server CWE-20 4.3 Medium 2021-06-16
CVE-2021-1564 Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link Layer Discovery Protocol Memory Leak Vulnerabilities — Cisco Video Surveillance 7000 Series IP Cameras CWE-400 6.5 Medium 2021-06-04
CVE-2021-1563 Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link Layer Discovery Protocol Memory Leak Vulnerabilities — Cisco Video Surveillance 7000 Series IP Cameras CWE-400 6.5 Medium 2021-06-04
CVE-2021-1544 Cisco Webex Meetings Client Software Logging Information Disclosure Vulnerability — Cisco Webex Meetings CWE-497 5.5 Medium 2021-06-04
CVE-2021-1540 Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities — Cisco ASR 5000 Series Software CWE-863 8.1 High 2021-06-04
CVE-2021-1539 Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities — Cisco ASR 5000 Series Software CWE-863 8.1 High 2021-06-04
CVE-2021-1538 Cisco Common Services Platform Collector Command Injection Vulnerability — Cisco Common Services Platform Collector Software CWE-78 4.7 Medium 2021-06-04
CVE-2021-1537 Cisco ThousandEyes Recorder Information Disclosure Vulnerability — Cisco ThousandEyes Recorder Application CWE-522 6.2 Medium 2021-06-04
CVE-2021-1536 Cisco Webex Meetings, Webex Network Recording Player, and Webex Teams DLL Injection Vulnerability — Cisco Webex Teams CWE-427 4.8 Medium 2021-06-04
CVE-2021-1528 Cisco SD-WAN Software Privilege Escalation Vulnerability — Cisco SD-WAN Solution CWE-250 7.8 High 2021-06-04
CVE-2021-1527 Cisco Webex Player Memory Corruption Vulnerability — Cisco Webex Meetings CWE-119 5.3 Medium 2021-06-04
CVE-2021-1526 Cisco Webex Player Memory Corruption Vulnerability — Cisco Webex Meetings CWE-119 7.8 High 2021-06-04
CVE-2021-1525 Cisco Webex Meetings and Webex Meetings Server File Redirect Vulnerability — Cisco WebEx Meetings Server CWE-601 4.7 Medium 2021-06-04
CVE-2021-1517 Cisco Webex Meetings and Webex Meetings Server Multimedia Sharing Security Bypass Vulnerability — Cisco WebEx Meetings Server CWE-693 5.0 Medium 2021-06-04
CVE-2021-1503 Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability — Cisco Webex Meetings CWE-119 7.8 High 2021-06-04
CVE-2021-1502 Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability — Cisco Webex Meetings CWE-119 7.8 High 2021-06-04
CVE-2021-1358 Cisco Finesse Open Redirect Vulnerability — Cisco Unified Contact Center Express CWE-601 4.7 Medium 2021-05-22
CVE-2021-1487 Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Command Injection Vulnerability — Cisco Prime Infrastructure CWE-78 8.8 High 2021-05-22
CVE-2021-1531 Cisco Modeling Labs Web UI Command Injection Vulnerability — Cisco Modeling Labs CWE-88 8.8 High 2021-05-22
CVE-2021-1547 Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection Vulnerabilities — Cisco Business Wireless Access Point Software CWE-77 4.7 Medium 2021-05-22
CVE-2021-1548 Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection Vulnerabilities — Cisco Business Wireless Access Point Software CWE-77 4.7 Medium 2021-05-22
CVE-2021-1549 Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection Vulnerabilities — Cisco Business Wireless Access Point Software CWE-77 4.7 Medium 2021-05-22

This page lists every published CVE security advisory associated with Cisco. Each entry links to a detailed page with CVSS scoring, CWE classification, affected products and references. AI-generated Chinese analysis is provided for fast triage.