Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%

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-2021-34757 Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities — Cisco Small Business 220 Series Smart Plus Switches CWE-540 4.9 Medium 2021-10-06
CVE-2021-34758 Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerability — Cisco RoomOS Software CWE-732 4.4 Medium 2021-10-06
CVE-2021-34766 Cisco Smart Software Manager Privilege Escalation Vulnerability — Cisco Smart Software Manager On-Prem CWE-269 5.4 Medium 2021-10-06
CVE-2021-34772 Cisco Orbital Open Redirect Vulnerability — Cisco Orbital CWE-601 4.7 Medium 2021-10-06
CVE-2021-34775 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart Switches CWE-120 4.3 Medium 2021-10-06
CVE-2021-34776 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart Switches CWE-120 4.3 Medium 2021-10-06
CVE-2021-34777 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart Switches CWE-120 4.3 Medium 2021-10-06
CVE-2021-34778 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart Switches CWE-120 4.3 Medium 2021-10-06
CVE-2021-34779 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart Switches CWE-120 4.3 Medium 2021-10-06
CVE-2021-34780 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business 200 Series Smart Switches CWE-120 4.3 Medium 2021-10-06
CVE-2021-34782 Cisco DNA Center Information Disclosure Vulnerability — Cisco Digital Network Architecture Center (DNA Center) CWE-202 4.3 Medium 2021-10-06
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 Client CWE-367 7.0 High 2021-10-06
CVE-2021-1534 Cisco Email Security Appliance URL Filtering Bypass Vulnerability — Cisco Email Security Appliance (ESA) CWE-20 5.8 Medium 2021-10-06
CVE-2021-1621 Cisco IOS XE Software Interface Queue Wedge Denial of Service Vulnerability — Cisco IOS XE Software CWE-399 7.4 High 2021-09-23
CVE-2021-1620 Cisco IOS and IOS XE Software IKEv2 AutoReconnect Feature Denial of Service Vulnerability — Cisco IOS CWE-563 7.7 High 2021-09-23
CVE-2021-1619 Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability — Cisco IOS XE Software CWE-824 9.8 Critical 2021-09-23
CVE-2021-1616 Cisco IOS XE Software H.323 Application Level Gateway Bypass Vulnerability — Cisco IOS XE Software CWE-693 4.7 Medium 2021-09-23
CVE-2021-1615 Cisco Embedded Wireless Controller Software for Catalyst Access Points Denial of Service Vulnerability — Cisco IOS XE Software CWE-410 8.6 High 2021-09-23
CVE-2021-1612 Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability — Cisco IOS XE SD-WAN Software CWE-61 5.5 Medium 2021-09-23
CVE-2021-1611 Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers EoGRE Denial of Service Vulnerability — Cisco IOS XE Software CWE-399 8.6 High 2021-09-23
CVE-2021-1589 Cisco SD-WAN vManage Software Disaster Recovery Feature Password Exposure Vulnerability — Cisco SD-WAN vManage CWE-256 6.5 Medium 2021-09-23
CVE-2021-1419 Cisco Access Points SSH Management Privilege Escalation Vulnerability — Cisco Wireless LAN Controller (WLC) CWE-284 7.8 High 2021-09-23
CVE-2021-1546 Cisco SD-WAN Software Information Disclosure Vulnerability — Cisco SD-WAN Solution CWE-209 5.5 Medium 2021-09-23
CVE-2021-1565 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities — Cisco IOS XE Software CWE-415 8.6 High 2021-09-23
CVE-2021-34770 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability — Cisco IOS XE Software CWE-122 10.0 Critical 2021-09-23
CVE-2021-34769 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities — Cisco IOS XE Software CWE-415 8.6 High 2021-09-23
CVE-2021-34768 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities — Cisco IOS XE Software CWE-415 8.6 High 2021-09-23
CVE-2021-34767 Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers IPv6 Denial of Service Vulnerability — Cisco IOS XE Software CWE-670 7.4 High 2021-09-23
CVE-2021-34740 Cisco Aironet Access Points WLAN Control Protocol Packet Buffer Leak Denial of Service Vulnerability — Cisco Aironet Access Point Software CWE-401 7.4 High 2021-09-23
CVE-2021-34729 Cisco IOS XE SD-WAN Software Command Injection Vulnerability — Cisco IOS XE SD-WAN Software CWE-77 6.7 Medium 2021-09-23

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.