CVE-2025-20222

HighCVSS 8.6/10Last modified Jun 17, 2026

Description

A vulnerability in the RADIUS proxy feature for the IPsec VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper processing of IPv6 packets. An attacker could exploit this vulnerability by sending IPv6 packets over an IPsec VPN connection to an affected device. A successful exploit could allow the attacker to trigger a reload of the device, resulting in a DoS condition.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weakness enumeration

CWE-120

Affected software

No affected versions have been published.

Timeline

Published: Aug 14, 2025
Last modified: Jun 17, 2026
NVD status: Deferred

Related CVEs from 2025

CVE-2025-202234.7A vulnerability in Cisco Catalyst Center, formerly Cisco DNA Center, could allow an authenticated, remote attacker to read and modify data i CVE-2025-202245.8A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software an CVE-2025-202255.8A vulnerability in the Internet Key Exchange Version 2 (IKEv2) feature of Cisco IOS Software, IOS XE Software, Secure Firewall Adaptive Secu CVE-2025-202265.7In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8 and Splunk Cloud Platform versions below 9.3.2408.107, 9.2.2406.111, and CVE-2025-202274.3In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and Splunk Cloud Platform versions below 9.3.2408.107, 9.2.2406.112, 9.2 CVE-2025-202286.5In Splunk Enterprise versions below 9.3.3, 9.2.5, and 9.1.8 and Splunk Cloud Platform versions below 9.2.2403.108, and 9.1.2312.204, a low-p CVE-2025-202298.0In Splunk Enterprise versions below 9.3.3, 9.2.5, and 9.1.8, and Splunk Cloud Platform versions below 9.3.2408.104, 9.2.2406.108, 9.2.2403.CVE-2025-20237.8Ashlar-Vellum Cobalt LI File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to exe CVE-2025-202306.5In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on CVE-2025-202315.7In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on CVE-2025-202325.7In Splunk Enterprise versions below 9.3.3, 9.2.5, and 9.1.8 and Splunk Cloud Platform versions below 9.3.2408.103, 9.2.2406.108, 9.2.2403.11 CVE-2025-202333.3In the Splunk App for Lookup File Editing versions below 4.0.5, a script in the app used the `chmod` and `makedirs` Python functions in a wa