[Palo Alto Networks Security Advisories] CVE-2025-4234 Cortex XDR Microsoft 365 Defender Pack: Cleartext Exposure ofCredentials

Palo Alto Networks Security Advisories /CVE-2025-4234

CVE-2025-4234 Cortex XDR Microsoft 365 Defender Pack: Cleartext Exposure of Credentials

Description

A problem with the Palo Alto Networks Cortex XDR Microsoft 365 Defender Pack can result in exposure of user credentials in application logs. Normally, these application logs are only viewable by local users and are included when generating logs for troubleshooting purposes. This means that these credentials are exposed to recipients of the application logs.

Product Status

Versions	Affected	Unaffected
Cortex XDR Microsoft 365 Defender Pack 4.6.0	< 4.6.5 on Windows	>= 4.6.5 on Windows

Required Configuration for Exposure

The Microsoft 365 Defender Pack must be enabled. 

Severity:LOW, Suggested Urgency:MODERATE

CVSS-BT:0.5 /CVSS-B:2.4 (CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:U/AU:N/R:U/V:D/RE:M/U:Amber)

Exploitation Status

Palo Alto Networks is not aware of any malicious exploitation of this issue.

Weakness Type and Impact

CWE-532: Insertion of Sensitive Information into Log File

CAPEC-21 Exploitation of Trusted Credentials

Solution

Version	Minor Version	Suggested Solution
Cortex XDR Microsoft 365 Defender Pack 4.6 on Windows	4.6.0 through 4.6.4	Upgrade to 4.6.5 or later.

Rotate any Client Secrets for Azure Applications that attempted connection with the Microsoft 365 Defender Pack. 

Workarounds and Mitigations

No known workarounds exist for this issue.

Acknowledgments

CPE Applicability

• cpe:2.3:a:palo_alto_networks:cortex_xdr_microsoft_365_defender_pack:*:*:*:*:*:Windows:*:* is vulnerable from (including)4.6.0 and up to (excluding)4.6.5

Timeline

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