Is CVE-2025-20192 actively exploited?

No active exploitation of CVE-2025-20192 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-20192 be exploited remotely?

Yes. CVE-2025-20192 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-20192?

CVE-2025-20192 has a CVSS score of 7.7 (HIGH).

HOME VULNERABILITIESCVE-2025-20192

HIGH

CVE-2025-20192

CWE-232Published: May 7, 2025· Updated: Jun 17, 2026

7.7

CVSS v3.1

Official Description

A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN credentials to exploit this vulnerability.

This vulnerability is due to improper validation of IKEv1 phase 2 parameters before the IPsec security association creation request is handed off to the hardware cryptographic accelerator of an affected device. An attacker could exploit this vulnerability by sending crafted IKEv1 messages to the affected device. A successful exploit could allow the attacker to cause the device to reload.

NVD Source

Technical Analysis

CVE-2025-20192 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.7.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.