Cisco security advisory (AV26-876)
Brief
Serial Number: AV26-876
Date: September 3, 2026
As of September 2, 2026, Cisco is affected by vulnerabilities in the following products:
- Cisco IOS XR Software
- Multiple versions
- Cisco Nexus 9000 Series Switches
- Multiple products
- Cisco Desk Phone 9800 Series and Video Phone 8875
- Prior to 5.0(1)
- IP Phone 7800 and 8800
- Prior to 14.4(1)SR3
- IP Phone 8845 and 8865
- Prior to14.4(1)SR4
- Wireless IP Phone 8821
- Prior to 11.0(6)SR8
The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.