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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-2021-1406 Cisco Unified Communications Manager Information Disclosure Vulnerability — Cisco Unified Communications Manager CWE-538 4.9 Medium 2021-04-08
CVE-2021-1399 Cisco Unified Communications Manager Self Care Portal Authorization Bypass Vulnerability — Cisco Unified Communications Manager CWE-302 4.3 Medium 2021-04-08
CVE-2021-1386 Cisco Advanced Malware Protection for Endpoints Windows Connector, ClamAV for Windows, and Immunet DLL Hijacking Vulnerability — Cisco AMP for Endpoints CWE-427 7.0 High 2021-04-08
CVE-2021-1380 Cisco Unified Communications Products Cross-Site Scripting Vulnerabilities — Cisco Unity Connection CWE-89 6.1 Medium 2021-04-08
CVE-2021-1362 Cisco Unified Communications Products Remote Code Execution Vulnerability — Cisco Unity Connection CWE-94 8.8 High 2021-04-08
CVE-2021-1309 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business RV Series Router Firmware CWE-119 7.4 High 2021-04-08
CVE-2021-1308 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business RV Series Router Firmware CWE-119 7.4 High 2021-04-08
CVE-2021-1251 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities — Cisco Small Business RV Series Router Firmware CWE-119 7.4 High 2021-04-08
CVE-2021-1137 Cisco SD-WAN vManage Software Vulnerabilities — Cisco SD-WAN Solution CWE-119 7.8 High 2021-04-08
CVE-2021-1492 Duo Authentication Proxy Installer Denial of Service Vulnerability — Duo Authentication Proxy CWE-64 6.6 Medium 2021-03-25
CVE-2021-1423 Cisco Aironet Access Points Arbitrary File Overwrite Vulnerability — Cisco Aironet Access Point Software CWE-668 4.4 Medium 2021-03-24
CVE-2021-1418 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities — Cisco Jabber CWE-170 9.9 Critical 2021-03-24
CVE-2021-1417 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities — Cisco Jabber CWE-170 9.9 Critical 2021-03-24
CVE-2021-1411 Cisco Jabber Desktop and Mobile Client Software Vulnerabilities — Cisco Jabber CWE-170 9.9 Critical 2021-03-24
CVE-2021-1381 Cisco IOS XE Software Active Debug Code Vulnerability — Cisco IOS XE Software CWE-489 6.1 Medium 2021-03-24
CVE-2021-1220 Cisco IOS XE Software Web UI Denial of Service Vulnerabilities — Cisco IOS XE Software CWE-20 4.3 Medium 2021-03-24
CVE-2021-1281 Cisco IOS XE SD-WAN Software Privilege Escalation Vulnerability — Cisco IOS XE Software CWE-399 5.1 Medium 2021-03-24
CVE-2021-1352 Cisco IOS XE Software DECnet Phase IV/OSI Denial of Service Vulnerability — Cisco IOS XE Software CWE-823 7.4 High 2021-03-24
CVE-2021-1356 Cisco IOS XE Software Web UI Denial of Service Vulnerabilities — Cisco IOS XE Software CWE-20 4.3 Medium 2021-03-24
CVE-2021-1371 Cisco IOS XE SD-WAN Software Console Privilege Escalation Vulnerability — Cisco IOS XE Software CWE-269 6.6 Medium 2021-03-24
CVE-2021-1373 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability — Cisco IOS XE Software CWE-126 8.6 High 2021-03-24
CVE-2021-1374 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Stored Cross-Site Scripting Vulnerability — Cisco IOS XE Software CWE-79 4.8 Medium 2021-03-24
CVE-2021-1375 Cisco IOS XE Software Fast Reload Vulnerabilities — Cisco IOS XE Software CWE-347 6.7 - 2021-03-24
CVE-2021-1376 Cisco IOS XE Software Fast Reload Vulnerabilities — Cisco IOS XE Software CWE-347 6.7 - 2021-03-24
CVE-2021-1377 Cisco IOS and IOS XE Software ARP Resource Management Exhaustion Denial of Service Vulnerability — Cisco IOS CWE-399 5.8 Medium 2021-03-24
CVE-2021-1382 Cisco IOS XE SD-WAN Software Command Injection Vulnerability — Cisco IOS XE Software CWE-77 6.0 Medium 2021-03-24
CVE-2021-1383 Cisco IOS XE SD-WAN Software Parameter Injection Vulnerabilities — Cisco IOS XE Software CWE-20 6.0 Medium 2021-03-24
CVE-2021-1384 Cisco IOx for IOS XE Software Command Injection Vulnerability — Cisco IOS XE Software CWE-77 6.5 Medium 2021-03-24
CVE-2021-1385 Cisco IOx Application Environment Path Traversal Vulnerability — Cisco IOS CWE-22 6.5 Medium 2021-03-24
CVE-2021-1390 Cisco IOS XE Software Local Privilege Escalation Vulnerability — Cisco IOS XE Software CWE-123 5.1 Medium 2021-03-24

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.