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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.

Found 36 results / 3188Clear Filters
CVE IDTitleCVSSSeverityPublished
CVE-2023-20081 Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software, IOS Software, and IOS XE Software IPv6 DHCP (DHCPv6) Client Denial of Service Vulnerability — Cisco IOSCWE-122 6.8 Medium2023-03-23
CVE-2023-20080 Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability — Cisco IOSCWE-129 8.6 High2023-03-23
CVE-2023-20076 Cisco IOx Application Hosting Environment Command Injection Vulnerability — Cisco IOSCWE-233 7.2 High2023-02-12
CVE-2022-20920 Cisco IOS and IOS XE Software SSH Denial of Service Vulnerability — Cisco IOSCWE-755 7.7 High2022-10-10
CVE-2022-20919 Cisco IOS and IOS XE Software Common Industrial Protocol Request Denial of Service Vulnerability — Cisco IOSCWE-248 8.6 High2022-09-30
CVE-2022-20720 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20721 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20722 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20723 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20724 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20725 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20726 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20727 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20761 Cisco 1000 Series Connected Grid Router Integrated Wireless Access Point Denial of Service Vulnerability — Cisco IOSCWE-248 7.4 High2022-04-15
CVE-2022-20677 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20697 Cisco IOS and IOS XE Software Web Services Denial of Service Vulnerability — Cisco IOSCWE-691 8.6 High2022-04-15
CVE-2022-20718 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
CVE-2022-20719 Cisco IOx Application Hosting Environment Vulnerabilities — Cisco IOSCWE-22 5.5 Medium2022-04-15
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-2021-34705 Cisco IOS and IOS XE Software FXO Interface Destination Pattern Bypass Vulnerability — Cisco IOSCWE-232 5.3 Medium2021-09-23
CVE-2021-34714 Multiple Cisco Operating Systems Unidirectional Link Detection Denial of Service Vulnerability — Cisco IOSCWE-20 7.4 High2021-09-23
CVE-2021-34703 Cisco IOS and IOS XE Software Link Layer Discovery Protocol Denial of Service Vulnerability — Cisco IOSCWE-456 6.8 Medium2021-09-23
CVE-2021-34699 Cisco IOS and IOS XE Software TrustSec CLI Parser Denial of Service Vulnerability — Cisco IOSCWE-435 7.7 High2021-09-23
CVE-2021-1377 Cisco IOS and IOS XE Software ARP Resource Management Exhaustion Denial of Service Vulnerability — Cisco IOSCWE-399 5.8 Medium2021-03-24
CVE-2021-1385 Cisco IOx Application Environment Path Traversal Vulnerability — Cisco IOSCWE-22 6.5 Medium2021-03-24
CVE-2021-1391 Cisco IOS and IOS XE Software Privilege Escalation Vulnerability — Cisco IOSCWE-489 5.1 Medium2021-03-24
CVE-2021-1392 Cisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerability — Cisco IOSCWE-522 7.8 High2021-03-24
CVE-2021-1460 Cisco IOx Application Framework Denial of Service Vulnerability — Cisco IOSCWE-400 5.3 Medium2021-03-24
CVE-2020-3408 Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability — Cisco IOSCWE-185 8.6 -2020-09-24
CVE-2020-3409 Cisco IOS and IOS XE Software PROFINET Denial of Service Vulnerability — Cisco IOSCWE-20 7.4 -2020-09-24

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.