PatchTheCVEios xr vulnerabilities and fixes
Recent CVEs affecting ios xr, with upgrade or downgrade steps. 3 tracked.
Also searched as: iosxr.
ios xr has 3 tracked vulnerabilities, 1 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-09-02. Highest priority: CVE-2026-20274 (score 50/100).
- CVE-2026-20280 HIGH 8.8 MITIGATE As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Softwar
- CVE-2026-20276 HIGH 8.6 MITIGATE As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software eng
- CVE-2026-20274 CRITICAL 9.8 MITIGATE As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software eng
FAQ
How do I fix ios xr vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is ios xr being exploited right now?
None of the tracked ios xr CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which ios xr CVE should I patch first?
CVE-2026-20274 currently ranks highest (50/100): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software eng.