Vulnerability in Cisco iOS Xe Software
CVE-2025-20315
A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, causing a denial of service (DoS) condition. This vulnerability is due to improper handling of malformed Control and Provisioning of Wireless Access Points (CAPWAP) packets. An attacker could exploit this vulnerability by sending malformed CAPWAP packets through an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.
EPSS: 0.004 (37.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Ios Xe Software — versions 3.7.0S, 3.7.1S, 3.7.2S
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-20315?
- CVE-2025-20315 is a high-severity vulnerability in Cisco iOS Xe Software, classified under Buffer Access with Incorrect Length Value. CVSS score: 8.6/10. Published 2025-09-24.
- How severe is CVE-2025-20315?
- High severity. CVSS v3 base score is 8.6 out of 10.