A buffer overflow vulnerability in the User-ID™ Authentication Portal (aka Captive Portal) service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets. The risk of this issue is greatly reduced if you secure access to the User-ID™ Authentication Portal per the best practice guidelines https://knowledgebase.paloaltonetworks.com/KCSArticleDetail by restricting access to only trusted internal IP addresses. Prisma Access, Cloud NGFW and Panorama appliances are not impacted by this vulnerability.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 50 products from paloaltonetworks, from paloaltonetworks, from paloaltonetworks and 47 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2026-05-06T19:16:35.730
2026-05-12T18:47:21.360
Analyzed
CVSSv3.1: 9.8 (CRITICAL)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | paloaltonetworks | pan-os | 10.2.0 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.1 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.2 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.3 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.5 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.8 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.9 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.11 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.12 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.14 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.15 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.16 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.16 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.16 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.16 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.17 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.18 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.18 | Yes |
| Operating System | paloaltonetworks | pan-os | 10.2.18 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.0 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.1 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.2 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.3 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.5 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.8 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.9 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.11 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.12 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.13 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.1.14 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.0 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.1 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.2 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.3 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.5 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.6 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.7 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.8 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.9 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.10 | Yes |
| Operating System | paloaltonetworks | pan-os | 11.2.11 | Yes |
| Operating System | paloaltonetworks | pan-os | 12.1.2 | Yes |
| Operating System | paloaltonetworks | pan-os | 12.1.3 | Yes |
| Operating System | paloaltonetworks | pan-os | 12.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 12.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 12.1.4 | Yes |
| Operating System | paloaltonetworks | pan-os | 12.1.5 | Yes |
| Operating System | paloaltonetworks | pan-os | 12.1.6 | Yes |
| Hardware | paloaltonetworks | pa-1410 | - | No |
| Hardware | paloaltonetworks | pa-1420 | - | No |
| Hardware | paloaltonetworks | pa-3410 | - | No |
| Hardware | paloaltonetworks | pa-3420 | - | No |
| Hardware | paloaltonetworks | pa-3430 | - | No |
| Hardware | paloaltonetworks | pa-3440 | - | No |
| Hardware | paloaltonetworks | pa-410 | - | No |
| Hardware | paloaltonetworks | pa-410r | - | No |
| Hardware | paloaltonetworks | pa-410r-5g | - | No |
| Hardware | paloaltonetworks | pa-415 | - | No |
| Hardware | paloaltonetworks | pa-415-5g | - | No |
| Hardware | paloaltonetworks | pa-440 | - | No |
| Hardware | paloaltonetworks | pa-445 | - | No |
| Hardware | paloaltonetworks | pa-450 | - | No |
| Hardware | paloaltonetworks | pa-450r | - | No |
| Hardware | paloaltonetworks | pa-450r-5g | - | No |
| Hardware | paloaltonetworks | pa-455 | - | No |
| Hardware | paloaltonetworks | pa-455-5g | - | No |
| Hardware | paloaltonetworks | pa-455r-5g | - | No |
| Hardware | paloaltonetworks | pa-460 | - | No |
| Hardware | paloaltonetworks | pa-501 | - | No |
| Hardware | paloaltonetworks | pa-505 | - | No |
| Hardware | paloaltonetworks | pa-510 | - | No |
| Hardware | paloaltonetworks | pa-520 | - | No |
| Hardware | paloaltonetworks | pa-540 | - | No |
| Hardware | paloaltonetworks | pa-5410 | - | No |
| Hardware | paloaltonetworks | pa-5420 | - | No |
| Hardware | paloaltonetworks | pa-5430 | - | No |
| Hardware | paloaltonetworks | pa-5440 | - | No |
| Hardware | paloaltonetworks | pa-5445 | - | No |
| Hardware | paloaltonetworks | pa-545-poe | - | No |
| Hardware | paloaltonetworks | pa-5450 | - | No |
| Hardware | paloaltonetworks | pa-550 | - | No |
| Hardware | paloaltonetworks | pa-5540 | - | No |
| Hardware | paloaltonetworks | pa-555-poe | - | No |
| Hardware | paloaltonetworks | pa-5550 | - | No |
| Hardware | paloaltonetworks | pa-5560 | - | No |
| Hardware | paloaltonetworks | pa-5570 | - | No |
| Hardware | paloaltonetworks | pa-5580 | - | No |
| Hardware | paloaltonetworks | pa-560 | - | No |
| Hardware | paloaltonetworks | pa-7500 | - | No |
| Hardware | paloaltonetworks | pa-7500-dpc-a | - | No |
| Hardware | paloaltonetworks | vm-100 | - | No |
| Hardware | paloaltonetworks | vm-300 | - | No |
| Hardware | paloaltonetworks | vm-50 | - | No |
| Hardware | paloaltonetworks | vm-500 | - | No |
| Hardware | paloaltonetworks | vm-700 | - | No |
| Operating System | siemens | ruggedcom_ape1808_firmware | - | Yes |
| Hardware | siemens | ruggedcom_ape1808 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For paloaltonetworks's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.