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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.

Found 112 results / 3365 Clear Filters
CVE ID Title CVSS Severity Published
CVE-2021-34728 Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerabilities — Cisco IOS XR Software CWE-78 7.8 High 2021-09-09
CVE-2021-34722 Cisco IOS XR Software Command Injection Vulnerabilities — Cisco IOS XR Software CWE-78 6.7 Medium 2021-09-09
CVE-2021-34721 Cisco IOS XR Software Command Injection Vulnerabilities — Cisco IOS XR Software CWE-78 6.7 Medium 2021-09-09
CVE-2021-34720 Cisco IOS XR Software IP Service Level Agreements and Two-Way Active Measurement Protocol Denial of Service Vulnerability — Cisco IOS XR Software CWE-771 8.6 High 2021-09-09
CVE-2021-34719 Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerabilities — Cisco IOS XR Software CWE-78 7.8 High 2021-09-09
CVE-2021-34718 Cisco IOS XR Software Arbitrary File Read and Write Vulnerability — Cisco IOS XR Software CWE-88 8.1 High 2021-09-09
CVE-2021-34713 Cisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability — Cisco IOS XR Software CWE-399 7.4 High 2021-09-09
CVE-2021-34709 Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities — Cisco IOS XR Software CWE-347 6.0 Medium 2021-09-09
CVE-2021-34708 Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities — Cisco IOS XR Software CWE-347 6.0 Medium 2021-09-09
CVE-2021-1485 Cisco IOS XR Software Command Injection Vulnerability — Cisco IOS XR Software CWE-88 6.6 Medium 2021-04-08
CVE-2021-1313 Cisco IOS XR Software Enf Broker Denial of Service Vulnerability — Cisco IOS XR Software CWE-399 8.6 High 2021-02-04
CVE-2021-1370 Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Privilege Escalation Vulnerability — Cisco IOS XR Software CWE-78 7.8 - 2021-02-04
CVE-2021-1389 Cisco IOS XR and Cisco NX-OS Software IPv6 Access Control List Bypass Vulnerability — Cisco IOS XR Software CWE-284 5.8 Medium 2021-02-04
CVE-2021-1128 Cisco IOS XR Software Unauthorized Information Disclosure Vulnerability — Cisco IOS XR Software CWE-201 5.5 Medium 2021-02-04
CVE-2021-1136 Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities — Cisco IOS XR Software CWE-347 6.7 Medium 2021-02-04
CVE-2021-1243 Cisco IOS XR Software SNMP Management Plane Protection ACL Bypass Vulnerability — Cisco IOS XR Software CWE-284 5.3 Medium 2021-02-04
CVE-2021-1244 Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities — Cisco IOS XR Software CWE-347 6.7 Medium 2021-02-04
CVE-2021-1268 Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability — Cisco IOS XR Software CWE-1076 7.4 High 2021-02-04
CVE-2021-1288 Cisco IOS XR Software Enf Broker Denial of Service Vulnerability — Cisco IOS XR Software CWE-399 8.6 High 2021-02-04
CVE-2020-26070 Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers Slow Path Forwarding Denial of Service Vulnerability — Cisco IOS XR Software CWE-404 8.6 High 2020-11-12
CVE-2020-3284 Cisco IOS XR Software Enhanced Preboot eXecution Environment Unsigned Code Execution Vulnerability — Cisco IOS XR Software CWE-284 9.8 - 2020-11-06
CVE-2019-16019 Cisco IOS XR Software BGP EVPN Denial of Service Vulnerabilities — Cisco IOS XR Software CWE-399 8.6 - 2020-09-23
CVE-2019-16021 Cisco IOS XR Software BGP EVPN Denial of Service Vulnerabilities — Cisco IOS XR Software CWE-399 8.6 - 2020-09-23
CVE-2019-16023 Cisco IOS XR Software BGP EVPN Denial of Service Vulnerabilities — Cisco IOS XR Software CWE-399 8.6 - 2020-09-23
CVE-2020-3569 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities — Cisco IOS XR Software CWE-400 8.6 High 2020-09-23
CVE-2020-3473 Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerability — Cisco IOS XR Software CWE-264 7.8 - 2020-09-04
CVE-2020-3530 Cisco IOS XR Authenticated User Privilege Escalation Vulnerability — Cisco IOS XR Software CWE-264 8.4 High 2020-09-04
CVE-2020-3566 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability — Cisco IOS XR Software CWE-400 8.6 High 2020-08-29
CVE-2020-3449 Cisco IOS XR Software Additional Paths Denial of Service Vulnerability — Cisco IOS XR Software CWE-754 4.3 Medium 2020-08-17
CVE-2020-3364 Cisco IOS XR Software Standby Route Processor Gigabit Ethernet Management Interface Access Control List Bypass Vulnerability — Cisco IOS XR Software CWE-284 5.3 - 2020-06-18

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.