Cyber Resilience

CVE-2025-20192

Published
07 May 2025
Modified
17 June 2026
CVSS Score v3.1 7.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS Score 0.0043 35th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-20192 is a high-severity Improper Handling of Undefined Values (CWE-232) vulnerability. Its CVSS base score is 7.7 (High).

Operationally, ranked at the 35th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

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…

more

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.

CWE(s)
CWE-232

Related Threats

CVEs Like This One

CVE-2025-40775Shared CWE-232
CVE-2023-2968Shared CWE-232
CVE-2023-36848Shared CWE-232
CVE-2025-20314Shared CWE-232
CVE-2023-39914Shared CWE-232
CVE-2023-39915Shared CWE-232
CVE-2026-21689Shared CWE-232

Affected Assets

—
Internet Key Exchange
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation directly rejects or sanitizes undefined/unsupported parameter values before they reach processing logic.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require proper input validation and error handling for undefined values.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development can detect missing handling of undefined values before release.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle requires handling of invalid/undefined inputs during design and coding.

A.8.26 Application security requirements partial match
prevents

Application security requirements include validation of all parameters and handling of unsupported values.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles mandate explicit handling of undefined or unsupported states.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require defensive checks for undefined or unsupported parameter values.

References