Allocation of Resources Without Limits or Throttling in Cisco Systems, Inc products - CVE-2025-20209
Published: March 13, 2025
Vulnerability identifier: #VU105690
CSH Severity: High
CVSS v4.0: 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:Amber
CVE-ID: CVE-2025-20209
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco IOS XR
NCS 540L
NCS 1004
NCS 1010
NCS 1014
Cisco IOS XR
NCS 540L
NCS 1004
NCS 1010
NCS 1014
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of malformed packets in the Internet Key Exchange version 2 (IKEv2) function. A remote attacker can send specially crafted IKEv2 packets and cause a denial of service condition on the target system.
How to mitigate CVE-2025-20209
Install updates from vendor's website.