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

Goal: 1000 CNY · Raised: 1000 CNY

100.0%

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 105 results / 3188Clear Filters
CVE IDTitleCVSSSeverityPublished
CVE-2026-20118 Cisco IOS-XR NCS 5500 and NCS 5700 Egress Packet Network Interfaces Aligner Interrupt Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-460 6.8 Medium2026-03-11
CVE-2026-20046 Cisco IOS XR Software CLI Privilege Escalation Vulnerability — Cisco IOS XR SoftwareCWE-264 8.8 High2026-03-11
CVE-2026-20074 Cisco IOS XR Software Multi-Instance Intermediate System-to-Intermediate System Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-1287 7.4 High2026-03-11
CVE-2026-20040 Cisco IOS XR Software CLI Privilege Escalation Vulnerability — Cisco IOS XR SoftwareCWE-78 8.8 High2026-03-11
CVE-2025-20340 Cisco IOS XR Address Resolution Protocol Broadcast Storm Vulnerability — Cisco IOS XR SoftwareCWE-400 7.4 High2025-09-10
CVE-2025-20159 Cisco IOS XR Software Management Interface ACL Bypass Vulnerability — Cisco IOS XR SoftwareCWE-284 5.3 Medium2025-09-10
CVE-2025-20248 Cisco IOS XR Software Image Verification Bypass Vulnerability — Cisco IOS XR SoftwareCWE-347 6.0 Medium2025-09-10
CVE-2025-20154 Cisco IOS, IOS XE and IOS XR Software TWAMP Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-20 8.6 High2025-05-07
CVE-2025-20209 Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-770 7.5 High2025-03-12
CVE-2025-20177 Cisco IOS XR Software Image Verification Bypass Vulnerability — Cisco IOS XR SoftwareCWE-274 6.7 Medium2025-03-12
CVE-2025-20146 Cisco IOS XR Software for ASR 9000 Series Routers Layer 3 Multicast Routing Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-20 8.6 High2025-03-12
CVE-2025-20145 Cisco IOS XR Software Access Control List Bypass Vulnerability — Cisco IOS XR SoftwareCWE-264 5.8 Medium2025-03-12
CVE-2025-20144 Cisco IOS XR Software Access Control List Bypass Vulnerability — Cisco IOS XR SoftwareCWE-284 4.0 Medium2025-03-12
CVE-2025-20143 Cisco IOS XR Software Secure Boot Bypass Vulnerability — Cisco IOS XR SoftwareCWE-347 6.7 Medium2025-03-12
CVE-2025-20142 Cisco IOS XR Software for ASR 9000 Series Routers L2VPN Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-20 8.6 High2025-03-12
CVE-2025-20141 Cisco IOS XR Software Release 7.9.2 Denial of Service Vulnerabillity — Cisco IOS XR SoftwareCWE-770 7.4 High2025-03-12
CVE-2025-20138 Cisco IOS XR Software CLI Privilege Escalation Vulnerability — Cisco IOS XR SoftwareCWE-78 8.8 High2025-03-12
CVE-2025-20115 Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-120 8.6 High2025-03-12
CVE-2021-1440 Cisco IOS XR Software BGP Resource Public Key Infrastructure Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-617 6.8 Medium2024-11-18
CVE-2022-20655 Cisco 多款产品操作系统命令注入漏洞 — Cisco IOS XR SoftwareCWE-78 8.8 High2024-11-15
CVE-2022-20846 Cisco IOS XR Software Cisco Discovery Protocol Buffer Overflow Vulnerability — Cisco IOS XR SoftwareCWE-120 4.3 Medium2024-11-15
CVE-2022-20845 Cisco Network Convergence System 4000 Series TL1 Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-789 6.0 Medium2024-11-15
CVE-2022-20849 Cisco IOS XR Software Broadband Network Gateway PPPoE Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-391 6.1 Medium2024-11-15
CVE-2024-20304 Cisco IOS XR Software Packet Memory Exhaustion Vulnerability — Cisco IOS XR SoftwareCWE-401 8.6 High2024-09-11
CVE-2024-20489 Cisco Routed Passive Optical Network Cleartext Password Vulnerability — Cisco IOS XR SoftwareCWE-256 8.4 High2024-09-11
CVE-2024-20483 Cisco IOS XR PON Controller Command Injection Vulnerabilities — Cisco IOS XR SoftwareCWE-78 7.2 High2024-09-11
CVE-2024-20406 Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-20 7.4 High2024-09-11
CVE-2024-20381 Cisco Network Services Orchestrator Configuration Update Authorization Bypass Vulnerability — Cisco IOS XR SoftwareCWE-285 8.8 High2024-09-11
CVE-2024-20317 Cisco IOS XR Software Layer 2 Services Denial of Service Vulnerability — Cisco IOS XR SoftwareCWE-684 7.4 High2024-09-11
CVE-2024-20398 Cisco IOS XR Software Local Privilege Escalation Vulnerability — Cisco IOS XR SoftwareCWE-78 8.8 High2024-09-11

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.