CVE-2025-20222
BaseFortify
Publication date: 2025-08-14
Last updated on: 2025-08-15
Assigner: Cisco Systems, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| cisco | secure_firewall_threat_defense | * |
| cisco | secure_firewall_adaptive_security_appliance | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-120 | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the RADIUS proxy feature for the IPsec VPN of Cisco Secure Firewall ASA and FTD Software. It is caused by improper processing of IPv6 packets. An unauthenticated remote attacker can exploit this by sending specially crafted IPv6 packets over an IPsec VPN connection to the affected device, which can trigger the device to reload and cause a denial of service (DoS) condition.
How can this vulnerability impact me? :
The impact of this vulnerability is a denial of service (DoS) condition. An attacker can remotely cause the affected device to reload, disrupting network security services and potentially causing downtime or loss of connectivity for users relying on the IPsec VPN.