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Cisco IOS XR Software — Vulnerabilities & Security Advisories 113

All 113 CVE vulnerabilities found in Cisco IOS XR Software, with AI-generated Chinese analysis, references, and POCs.

This page aggregates known security weaknesses for Cisco IOS XR Software, focusing on critical implementation flaws and configuration errors. It collects vulnerabilities reported against this specific router operating system, covering advisories published from 2009 through 2024. Readers can use this resource to track Cisco's security bulletins, analyze common weakness patterns like buffer overflows or authentication bypasses, and review the historical vulnerability profile of the product. The data is organized to support security operations teams in assessing exposure and prioritizing patches without needing to search individual CVE databases.

Vendor: n/a

CVE ID Title CVSS Severity Published
CVE-2021-34728 Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerabilities CWE-78 7.8 High 2021-09-09
CVE-2021-34722 Cisco IOS XR Software Command Injection Vulnerabilities CWE-78 6.7 Medium 2021-09-09
CVE-2021-34721 Cisco IOS XR Software Command Injection Vulnerabilities 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 CWE-771 8.6 High 2021-09-09
CVE-2021-34719 Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerabilities CWE-78 7.8 High 2021-09-09
CVE-2021-34718 Cisco IOS XR Software Arbitrary File Read and Write Vulnerability CWE-88 8.1 High 2021-09-09
CVE-2021-34713 Cisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability 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 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 CWE-347 6.0 Medium 2021-09-09
CVE-2021-1485 Cisco IOS XR Software Command Injection Vulnerability CWE-88 6.6 Medium 2021-04-08
CVE-2021-1313 Cisco IOS XR Software Enf Broker Denial of Service Vulnerability 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 CWE-78 7.8 - 2021-02-04
CVE-2021-1389 Cisco IOS XR and Cisco NX-OS Software IPv6 Access Control List Bypass Vulnerability CWE-284 5.8 Medium 2021-02-04
CVE-2021-1128 Cisco IOS XR Software Unauthorized Information Disclosure Vulnerability 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 CWE-347 6.7 Medium 2021-02-04
CVE-2021-1243 Cisco IOS XR Software SNMP Management Plane Protection ACL Bypass Vulnerability 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 CWE-347 6.7 Medium 2021-02-04
CVE-2021-1268 Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability CWE-1076 7.4 High 2021-02-04
CVE-2021-1288 Cisco IOS XR Software Enf Broker Denial of Service Vulnerability 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 CWE-404 8.6 High 2020-11-12
CVE-2020-3284 Cisco IOS XR Software Enhanced Preboot eXecution Environment Unsigned Code Execution Vulnerability CWE-284 9.8 - 2020-11-06
CVE-2019-16019 Cisco IOS XR Software BGP EVPN Denial of Service Vulnerabilities CWE-399 8.6 - 2020-09-23
CVE-2019-16021 Cisco IOS XR Software BGP EVPN Denial of Service Vulnerabilities CWE-399 8.6 - 2020-09-23
CVE-2019-16023 Cisco IOS XR Software BGP EVPN Denial of Service Vulnerabilities CWE-399 8.6 - 2020-09-23
CVE-2020-3569 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities CWE-400 8.6 High 2020-09-23
CVE-2020-3473 Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerability CWE-264 7.8 - 2020-09-04
CVE-2020-3530 Cisco IOS XR Authenticated User Privilege Escalation Vulnerability CWE-264 8.4 High 2020-09-04
CVE-2020-3566 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability CWE-400 8.6 High 2020-08-29
CVE-2020-3449 Cisco IOS XR Software Additional Paths Denial of Service Vulnerability 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 CWE-284 5.3 - 2020-06-18

All 113 known CVE vulnerabilities affecting Cisco IOS XR Software with full Chinese analysis, references, and POCs where available.