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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-2021-1391 Cisco IOS and IOS XE Software Privilege Escalation Vulnerability — Cisco IOS CWE-489 5.1 Medium 2021-03-24
CVE-2021-1392 Cisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerability — Cisco IOS CWE-522 7.8 High 2021-03-24
CVE-2021-1394 Cisco IOS XE Software for Network Convergence System 520 Routers Denial of Service Vulnerability — Cisco IOS XE Software CWE-399 5.3 Medium 2021-03-24
CVE-2021-1398 Cisco IOS XE Software Arbitrary Code Execution Vulnerability — Cisco IOS XE Software CWE-489 6.8 Medium 2021-03-24
CVE-2021-1403 Cisco IOS XE Software Web UI Cross-Site WebSocket Hijacking Vulnerability — Cisco IOS XE Software CWE-345 7.4 High 2021-03-24
CVE-2021-1471 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities — Cisco Jabber CWE-170 9.9 Critical 2021-03-24
CVE-2021-1469 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities — Cisco Jabber CWE-170 9.9 Critical 2021-03-24
CVE-2021-1460 Cisco IOx Application Framework Denial of Service Vulnerability — Cisco IOS CWE-400 5.3 Medium 2021-03-24
CVE-2021-1454 Cisco IOS XE SD-WAN Software Parameter Injection Vulnerabilities — Cisco IOS XE Software CWE-20 6.0 Medium 2021-03-24
CVE-2021-1453 Cisco IOS XE Software for the Catalyst 9000 Family Arbitrary Code Execution Vulnerability — Cisco IOS XE Software CWE-347 6.8 Medium 2021-03-24
CVE-2021-1452 Cisco IOS XE ROM Monitor Software for Cisco Industrial Switches OS Command Injection Vulnerability — Cisco IOS XE ROMMON Software CWE-78 6.8 Medium 2021-03-24
CVE-2021-1451 Cisco IOS XE Software Easy Virtual Switching System Arbitrary Code Execution Vulnerability — Cisco IOS XE Software CWE-119 8.1 High 2021-03-24
CVE-2021-1449 Cisco Access Point Software Arbitrary Code Execution Vulnerability — Cisco Aironet Access Point Software CWE-284 6.7 Medium 2021-03-24
CVE-2021-1446 Cisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnerability — Cisco IOS XE Software CWE-754 8.6 High 2021-03-24
CVE-2021-1443 Cisco IOS XE Software Web UI OS Command Injection Vulnerability — Cisco IOS XE Software CWE-77 5.5 Medium 2021-03-24
CVE-2021-1441 Cisco IOS XE Software Hardware Initialization Routines Arbitrary Code Execution Vulnerability — Cisco IOS XE Software CWE-78 6.7 Medium 2021-03-24
CVE-2021-1442 Cisco IOS XE Software Plug-and-Play Privilege Escalation Vulnerability — Cisco IOS XE Software CWE-532 7.8 - 2021-03-24
CVE-2021-1439 Cisco Aironet Access Points FlexConnect Multicast DNS Denial of Service Vulnerability — Cisco Aironet Access Point Software (IOS XE Controller) CWE-120 7.4 High 2021-03-24
CVE-2021-1437 Cisco Aironet Access Points FlexConnect Upgrade Information Disclosure Vulnerability — Cisco Aironet Access Point Software CWE-275 7.5 High 2021-03-24
CVE-2021-1436 Cisco IOS XE SD-WAN Software Path Traversal Vulnerability — Cisco IOS XE Software CWE-22 4.4 Medium 2021-03-24
CVE-2021-1435 Cisco IOS XE Software Web UI Command Injection Vulnerability — Cisco IOS XE Software CWE-22 8.8 - 2021-03-24
CVE-2021-1434 Cisco IOS XE SD-WAN Software Arbitrary File Corruption Vulnerability — Cisco IOS XE Software CWE-552 4.4 Medium 2021-03-24
CVE-2021-1433 Cisco IOS XE SD-WAN Software vDaemon Buffer Overflow Vulnerability — Cisco IOS XE Software CWE-119 8.1 High 2021-03-24
CVE-2021-1432 Cisco IOS XE SD-WAN Software Arbitrary Command Execution Vulnerability — Cisco IOS XE Software CWE-20 7.3 High 2021-03-24
CVE-2021-1431 Cisco IOS XE SD-WAN Software vDaemon Denial of Service Vulnerability — Cisco IOS XE Software CWE-20 7.5 High 2021-03-24
CVE-2021-1287 Cisco Small Business RV132W and RV134W Routers Management Interface Remote Command Execution and Denial of Service Vulnerability — Cisco Small Business RV Series Router Firmware CWE-121 7.2 High 2021-03-18
CVE-2021-1450 Cisco AnyConnect Secure Mobility Client Denial of Service Vulnerability — Cisco AnyConnect Secure Mobility Client CWE-20 5.5 Medium 2021-02-24
CVE-2021-1396 Cisco Application Services Engine Unauthorized Access Vulnerabilities — Cisco Application Services Engine Software CWE-306 9.8 Critical 2021-02-24
CVE-2021-1393 Cisco Application Services Engine Unauthorized Access Vulnerabilities — Cisco Application Services Engine Software CWE-306 9.8 Critical 2021-02-24
CVE-2021-1388 Cisco ACI Multi-Site Orchestrator Application Services Engine Deployment Authentication Bypass Vulnerability — Cisco ACI Multi-Site Orchestrator Software CWE-269 10.0 Critical 2021-02-24

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.