[Palo Alto Networks Security Advisories] CVE-2025-0121 Cortex XDR Agent: Local Windows User Can Crash the Agent

Palo Alto Networks Security Advisories /CVE-2025-0121

CVE-2025-0121 Cortex XDR Agent: Local Windows User Can Crash the Agent

UrgencyMODERATE

047910
Severity4.3 ·MEDIUM
Exploit MaturityUNREPORTED
Response EffortMODERATE
RecoveryUSER
Value DensityDIFFUSE
Attack ComplexityLOW
Attack RequirementsNONE
AutomatableNO
User InteractionNONE
Product ConfidentialityNONE
Product IntegrityNONE
Product AvailabilityHIGH
Privileges RequiredLOW
Subsequent ConfidentialityNONE
Subsequent IntegrityNONE
Subsequent AvailabilityNONE

Description

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.

Product Status

VersionsAffectedUnaffected
Cortex XDR Agent 8.7None on WindowsAll on Windows
Cortex XDR Agent 8.6< 8.6.1 on Windows>= 8.6.1 on Windows
Cortex XDR Agent 8.5< 8.5.2 on Windows>= 8.5.2 on Windows
Cortex XDR Agent 8.3-CE< 8.3.101-CE HF on Windows>= 8.3.101-CE HF on Windows
Cortex XDR Agent 7.9-CE< 7.9.103-CE HF on Windows>= 7.9.103-CE HF on Windows

Required Configuration for Exposure

No special configuration is needed to be affected by this issue.

Severity:MEDIUM, Suggested Urgency:MODERATE

CVSS-BT:4.3 /CVSS-B:6.8 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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-476 NULL Pointer Dereference

CAPEC-578 Disable Security Software

Solution

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.

Workarounds and Mitigations

There are no known workarounds for this issue.

Acknowledgments

Palo Alto Networks thanks adcisseckilled for discovering and reporting the issue.

CPEs

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.6.0:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.5.0:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.5.1:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.3-CE:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:7.9-CE:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:7.9.101-CE:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:7.9.102-CE:-:*:*:*:*:*:*

Timeline

Initial Publication


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[Palo Alto Networks Security Advisories] CVE-2025-0121 Cortex XDR Agent: Local Windows User Can Crash the Agent

Palo Alto Networks Security Advisories /CVE-2025-0121

CVE-2025-0121 Cortex XDR Agent: Local Windows User Can Crash the Agent

UrgencyMODERATE

047910
Severity4.3 ·MEDIUM
Exploit MaturityUNREPORTED
Response EffortMODERATE
RecoveryUSER
Value DensityDIFFUSE
Attack ComplexityLOW
Attack RequirementsNONE
AutomatableNO
User InteractionNONE
Product ConfidentialityNONE
Product IntegrityNONE
Product AvailabilityHIGH
Privileges RequiredLOW
Subsequent ConfidentialityNONE
Subsequent IntegrityNONE
Subsequent AvailabilityNONE

Description

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.

Product Status

VersionsAffectedUnaffected
Cortex XDR Agent 8.7None on WindowsAll on Windows
Cortex XDR Agent 8.6< 8.6.1 on Windows>= 8.6.1 on Windows
Cortex XDR Agent 8.5< 8.5.2 on Windows>= 8.5.2 on Windows
Cortex XDR Agent 8.3-CE< 8.3.101-CE HF on Windows>= 8.3.101-CE HF on Windows
Cortex XDR Agent 7.9-CE< 7.9.103-CE HF on Windows>= 7.9.103-CE HF on Windows

Required Configuration for Exposure

No special configuration is needed to be affected by this issue.

Severity:MEDIUM, Suggested Urgency:MODERATE

CVSS-BT:4.3 /CVSS-B:6.8 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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-476 NULL Pointer Dereference

CAPEC-578 Disable Security Software

Solution

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.

Workarounds and Mitigations

There are no known workarounds for this issue.

Acknowledgments

Palo Alto Networks thanks adcisseckilled for discovering and reporting the issue.

CPEs

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.6.0:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.5.0:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.5.1:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:8.3-CE:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:7.9-CE:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:7.9.101-CE:-:*:*:*:*:*:*

cpe:2.3:a:paloaltonetworks:cortex_xdr_agent:7.9.102-CE:-:*:*:*:*:*:*

Timeline

Initial Publication


A considerable amount of time and effort goes into maintaining this website, creating backend automation and creating new features and content for you to make actionable intelligence decisions. Everyone that supports the site helps enable new functionality.

If you like the site, please support us on “Patreon” or “Buy Me A Coffee” using the buttons below

To keep up to date follow us on the below channels.