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CVE-2026-0300 - Palo Alto Networks PAN-OS

Palo Alto Networks PAN-OS contains an out-of-bounds write vulnerability in the User-ID Authentication Portal (aka Captive Portal) service that can allow an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets.

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AI Vulnerability ContextCISA KEVPalo Alto Networks

Record summary

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CISA KEVyesWhether CISA lists this as exploited.
Techniques0AI attack methods connected to this vulnerability.
Case studies0Examples where this vulnerability is mentioned.

Vulnerability status

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CISA KEV
CVE ID
CVE-2026-0300
Vendor/project
Palo Alto Networks
Product
PAN-OS
Vulnerability name
Palo Alto Networks PAN-OS Out-of-bounds Write Vulnerability
Date added
2026-05-06
Due date
2026-05-09
Known ransomware campaign use
Unknown
CWE-787

Exploit context

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No description available. The source record only contains identifiers and metadata.

Related AI techniques

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No related AI attack methods. No AI attack method is connected to this vulnerability in the current data.

Related case studies

Examples where this vulnerability is mentioned.

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