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Cisco — Vulnerabilities & Security Advisories 3188

Browse all 3188 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 IDTitleCVSSSeverityPublished
CVE-2021-34742 Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability — Cisco Vision Dynamic Signage DirectorCWE-79 6.1 Medium2021-10-06
CVE-2021-34744 Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities — Cisco Small Business 220 Series Smart Plus SwitchesCWE-540 4.9 Medium2021-10-06
CVE-2021-34748 Cisco Intersight Virtual Appliance Command Injection Vulnerability — Cisco Intersight Virtual ApplianceCWE-77 8.8 High2021-10-06
CVE-2021-34757 Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities — Cisco Small Business 220 Series Smart Plus SwitchesCWE-540 4.9 Medium2021-10-06
CVE-2021-34758 Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerability — Cisco RoomOS SoftwareCWE-732 4.4 Medium2021-10-06
CVE-2021-34766 Cisco Smart Software Manager Privilege Escalation Vulnerability — Cisco Smart Software Manager On-PremCWE-269 5.4 Medium2021-10-06
CVE-2021-34772 Cisco Orbital Open Redirect Vulnerability — Cisco OrbitalCWE-601 4.7 Medium2021-10-06
CVE-2021-34775 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart SwitchesCWE-120 4.3 Medium2021-10-06
CVE-2021-34776 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart SwitchesCWE-120 4.3 Medium2021-10-06
CVE-2021-34777 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart SwitchesCWE-120 4.3 Medium2021-10-06
CVE-2021-34778 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart SwitchesCWE-120 4.3 Medium2021-10-06
CVE-2021-34779 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart SwitchesCWE-120 4.3 Medium2021-10-06
CVE-2021-34780 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart SwitchesCWE-120 4.3 Medium2021-10-06
CVE-2021-34782 Cisco DNA Center Information Disclosure Vulnerability — Cisco Digital Network Architecture Center (DNA Center)CWE-202 4.3 Medium2021-10-06
CVE-2021-34788 Cisco AnyConnect Secure Mobility Client for Linux and Mac OS with VPN Posture (HostScan) Module Shared Library Hijacking Vulnerability — Cisco AnyConnect Secure Mobility ClientCWE-367 7.0 High2021-10-06
CVE-2021-1534 Cisco Email Security Appliance URL Filtering Bypass Vulnerability — Cisco Email Security Appliance (ESA)CWE-20 5.8 Medium2021-10-06
CVE-2021-1621 Cisco IOS XE Software Interface Queue Wedge Denial of Service Vulnerability — Cisco IOS XE SoftwareCWE-399 7.4 High2021-09-23
CVE-2021-1620 Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability — Cisco IOSCWE-563 7.7 High2021-09-23
CVE-2021-1619 Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability — Cisco IOS XE SoftwareCWE-824 9.8 Critical2021-09-23
CVE-2021-1616 Cisco IOS XE Software H.323 Application Level Gateway Bypass Vulnerability — Cisco IOS XE SoftwareCWE-693 4.7 Medium2021-09-23
CVE-2021-1615 Cisco Embedded Wireless Controller Software for Catalyst Access Points Denial of Service Vulnerability — Cisco IOS XE SoftwareCWE-410 8.6 High2021-09-23
CVE-2021-1612 Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability — Cisco IOS XE SD-WAN SoftwareCWE-61 5.5 Medium2021-09-23
CVE-2021-1611 Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers EoGRE Denial of Service Vulnerability — Cisco IOS XE SoftwareCWE-399 8.6 High2021-09-23
CVE-2021-1589 Cisco SD-WAN vManage Software Disaster Recovery Feature Password Exposure Vulnerability — Cisco SD-WAN vManageCWE-256 6.5 Medium2021-09-23
CVE-2021-1419 Cisco Access Points SSH Management Privilege Escalation Vulnerability — Cisco Wireless LAN Controller (WLC)CWE-284 7.8 High2021-09-23
CVE-2021-1546 Cisco SD-WAN Software Information Disclosure Vulnerability — Cisco SD-WAN SolutionCWE-209 5.5 Medium2021-09-23
CVE-2021-1565 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities — Cisco IOS XE SoftwareCWE-415 8.6 High2021-09-23
CVE-2021-34770 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability — Cisco IOS XE SoftwareCWE-122 10.0 Critical2021-09-23
CVE-2021-34769 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities — Cisco IOS XE SoftwareCWE-415 8.6 High2021-09-23
CVE-2021-34768 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities — Cisco IOS XE SoftwareCWE-415 8.6 High2021-09-23

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.