IOS XR
200 CVEs tracked. 10 of them are in CISA KEV.
This hub aggregates every CVE we track for IOS XR, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.
IOS XR CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 3 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 1 |
| 2025-03 | 10 |
| 2025-04 | 0 |
| 2025-05 | 1 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 2 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 3 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 0 |
| 2026-08 | 0 |
| 2026-09 | 3 |
Severity
How the 200 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical4
- High92
- Medium101
- Low3
Latest CVEs
The 15 most recently published vulnerabilities affecting IOS XR.
- CVE-2026-20280Cisco IOS XR Software Security Hardening Release: September 20268.8
- CVE-2026-20274Cisco IOS XR Software Security Hardening Release: September 20269.8
- CVE-2026-20276Cisco IOS XR Software Security Hardening Release: September 20268.6
- CVE-2026-20046Cisco IOS XR Software CLI Privilege Escalation Vulnerability8.8
- CVE-2026-20040Cisco IOS XR Software CLI Privilege Escalation Vulnerability8.8
- CVE-2026-20074Cisco IOS XR Software Multi-Instance Intermediate System-to-Intermediate System Denial of Service Vulnerability7.4
- CVE-2025-20363A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco IOS Software, Cisco IOS XE Softwa...9.0
- CVE-2025-20248Cisco IOS XR Software Image Verification Bypass Vulnerability6.0
- CVE-2025-20154Cisco IOS, IOS XE and IOS XR Software TWAMP Denial of Service Vulnerability8.6
- CVE-2025-20209Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability7.5
- CVE-2025-20177Cisco IOS XR Software Image Verification Bypass Vulnerability6.7
- CVE-2025-20146Cisco IOS XR Software for ASR 9000 Series Routers Layer 3 Multicast Routing Denial of Service Vulnerability8.6
- CVE-2025-20145Cisco IOS XR Software Access Control List Bypass Vulnerability5.8
- CVE-2025-20144Cisco IOS XR Software Access Control List Bypass Vulnerability4.0
- CVE-2025-20143Cisco IOS XR Software Secure Boot Bypass Vulnerability6.7
Product grouping is registry-driven, with AI assist and human review. How it works