SB2025092528 - Denial of service in Cisco IOS XE Software

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Main Vulnerability Database SB2025092528

SB2025092528 - Denial of service in Cisco IOS XE Software

Published: September 25, 2025

Security Bulletin ID SB2025092528
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Buffer Access with Incorrect Length Value (CVE-ID: CVE-2025-20315)

CWE-ID: CWE-805 - Buffer Access with Incorrect Length Value

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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.

References