CVE-2025-20253
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-14

Last updated on: 2025-08-15

Assigner: Cisco Systems, Inc.

Description
A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to cause an infinite loop that exhausts resources and could cause the device to reload.
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Meta Information
Published
2025-08-14
Last Modified
2025-08-15
Generated
2026-05-06
AI Q&A
2025-08-14
EPSS Evaluated
2026-05-05
NVD
CVE-2025-20253
EUVD
EUVD-2025-24842
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
cisco secure_firewall_asa *
cisco ios_xe *
cisco secure_firewall_ftd *
cisco ios *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-835 The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the IKEv2 feature of certain Cisco software products. It occurs because the software improperly processes IKEv2 packets. An unauthenticated, remote attacker can exploit this by sending specially crafted IKEv2 packets, which can cause the device to enter an infinite loop that exhausts its resources and ultimately causes the device to reload.


How can this vulnerability impact me? :

The vulnerability can cause a denial of service (DoS) condition by forcing the affected device to reload unexpectedly. This can disrupt network availability and potentially impact business operations that rely on the affected Cisco devices.


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