Cisco ios xr software

This hub aggregates every CVE we track for Cisco ios xr software, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.

Severity distribution

Monthly trend

The 15 most recently published vulnerabilities affecting Cisco ios xr software.

• CVE-2026-20278Cisco IOS XR Software Security Hardening Release: September 20268.8Sep 2, 2026
• CVE-2026-20280Cisco IOS XR Software Security Hardening Release: September 20268.8Sep 2, 2026
• CVE-2026-20279Cisco IOS XR Software Security Hardening Release: September 20269.8Sep 2, 2026
• CVE-2026-20275Cisco IOS XR Software Security Hardening Release: September 20268.8Sep 2, 2026
• CVE-2026-20274Cisco IOS XR Software Security Hardening Release: September 20269.8Sep 2, 2026
• CVE-2026-20276Cisco IOS XR Software Security Hardening Release: September 20268.6Sep 2, 2026
• CVE-2026-20277Cisco IOS XR Software Security Hardening Release: September 20268.2Sep 2, 2026
• CVE-2026-20118Cisco IOS-XR NCS 5500 and NCS 5700 Egress Packet Network Interfaces Aligner Interrupt Denial of Service Vulnerability6.8Mar 11, 2026
• CVE-2026-20046Cisco IOS XR Software CLI Privilege Escalation Vulnerability8.8Mar 11, 2026
• CVE-2026-20040Cisco IOS XR Software CLI Privilege Escalation Vulnerability8.8Mar 11, 2026
• CVE-2026-20074Cisco IOS XR Software Multi-Instance Intermediate System-to-Intermediate System Denial of Service Vulnerability7.4Mar 11, 2026
• 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...9.0Sep 25, 2025
• CVE-2025-20340Cisco IOS XR Address Resolution Protocol Broadcast Storm Vulnerability7.4Sep 10, 2025
• CVE-2025-20159Cisco IOS XR Software Management Interface ACL Bypass Vulnerability5.3Sep 10, 2025
• CVE-2025-20248Cisco IOS XR Software Image Verification Bypass Vulnerability6.0Sep 10, 2025