What is the severity of CVE-2025-0121?

CVE-2025-0121 is considered a high severity vulnerability due to the potential for local users to crash the Cortex XDR agent and evade detection from malicious activity.

How do I fix CVE-2025-0121?

To fix CVE-2025-0121, update the Cortex XDR agent to version 8.6.2 or later, where the vulnerability has been patched.

Who is affected by CVE-2025-0121?

CVE-2025-0121 affects low-privileged local Windows users running vulnerable versions of the Palo Alto Networks Cortex XDR agent.

What type of vulnerability is CVE-2025-0121?

CVE-2025-0121 is a null pointer dereference vulnerability which allows for an unexpected program crash.

What can attackers do with CVE-2025-0121?

Attackers can exploit CVE-2025-0121 to crash the Cortex XDR agent and potentially perform malicious activities undetected by the agent.

Vulnerability/
CVE-2025-0121

medium

6.8

CWE

476

9/4/2025

CVE-2025-0121: Cortex XDR Agent: Local Windows User Can Crash the Agent (Severity: MEDIUM)

First published: Wed Apr 09 2025(Updated: )

A null pointer dereference vulnerability in the Palo Alto Networks Cortex® XDR agent on Windows devices allows a low-privileged local Windows user to crash the agent. Additionally, malware can use this vulnerability to perform malicious activity without Cortex XDR being able to detect it.

Affected Software	Affected Version	How to fix
All of
Cortex XDR Agent	<8.6.1=8.6.0<8.5.2=8.5.0<8.3.101-CE HF=8.3-CE<7.9.103-CE HF=7.9-CE	8.6.1 8.5.2 8.3.101-CE HF 7.9.103-CE HF
Microsoft Windows Operating System	*

Remedy

There are no known workarounds for this issue.

Remedy

This issue is fixed in Cortex XDR Agent 8.6.1, Cortex XDR Agent 8.5.2, Cortex XDR Agent 8.3.101-CE HF, Cortex XDR Agent 7.9.103-CE HF, and all later Cortex XDR Agent versions.

Never miss a vulnerability like this again

Reference Links

https://security.paloaltonetworks.com/CVE-2025-0121

Frequently Asked Questions

What is the severity of CVE-2025-0121?
CVE-2025-0121 is considered a high severity vulnerability due to the potential for local users to crash the Cortex XDR agent and evade detection from malicious activity.
How do I fix CVE-2025-0121?
To fix CVE-2025-0121, update the Cortex XDR agent to version 8.6.2 or later, where the vulnerability has been patched.
Who is affected by CVE-2025-0121?
CVE-2025-0121 affects low-privileged local Windows users running vulnerable versions of the Palo Alto Networks Cortex XDR agent.
What type of vulnerability is CVE-2025-0121?
CVE-2025-0121 is a null pointer dereference vulnerability which allows for an unexpected program crash.
What can attackers do with CVE-2025-0121?
Attackers can exploit CVE-2025-0121 to crash the Cortex XDR agent and potentially perform malicious activities undetected by the agent.

collector/paloaltonetworks-latest
source/Palo Alto Networks
agent/last-modified-date
agent/references
agent/source
agent/title
agent/type
agent/first-publish-date
agent/event
collector/paloaltonetworks-api
agent/software-canonical-lookup
agent/severity
agent/weakness
agent/remedy
agent/softwarecombine
agent/tags
agent/description
vendor/palo alto networks
canonical/cortex xdr agent
version/cortex xdr agent/8.6.0
version/cortex xdr agent/8.5.0
version/cortex xdr agent/8.3-ce
version/cortex xdr agent/7.9-ce
vendor/microsoft
canonical/microsoft windows operating system

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.