SB2025092528 - Denial of service in Cisco IOS XE Software
Published: September 25, 2025
Security Bulletin ID
SB2025092528
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer Access with Incorrect Length Value (CVE-ID: CVE-2025-20315)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of malformed Control and Provisioning of Wireless Access Points (CAPWAP) packets in the Network-Based Application Recognition (NBAR) feature. A remote attacker can send a specially crafted CAPWAP packet and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.