PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities_CVE-2026-0257

4.7 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber

Description

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection.

Panorama and Cloud NGFW are not impacted by these issues.

Basic Information

ID CVE-2026-0257

Source palo_alto

Published May 13, 2026 at 18:15

Modified May 13, 2026 at 18:59

Affected Product

Vendor Palo Alto Networks

Product Cloud NGFW

Version All

Affected Versions Palo Alto Networks PAN-OS 12.1.0
Palo Alto Networks PAN-OS 11.2.0
Palo Alto Networks PAN-OS 11.1.0
Palo Alto Networks PAN-OS 10.2.0
Palo Alto Networks Prisma Access 10.2.0
Palo Alto Networks Prisma Access 11.2.0

CWE Classification

CWE-565

References

security.paloaltonetworks.com /CVE-2026-0257

{
    "lastseen": "",
    "description": "Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS\u00ae software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection.\n\nPanorama and Cloud NGFW are not impacted by these issues.",
    "published": "2026-05-13T18:15:10.172Z",
    "modified": "2026-05-13T18:59:16.461Z",
    "type": "cve",
    "title": "PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities",
    "source": "palo_alto",
    "references": "https://security.paloaltonetworks.com/CVE-2026-0257",
    "id": "CVE-2026-0257",
    "bulletinFamily": "",
    "cwe": [
        "CWE-565"
    ],
    "cvelist": null,
    "sourceData": "Palo Alto Networks PAN-OS 12.1.0\nPalo Alto Networks PAN-OS 11.2.0\nPalo Alto Networks PAN-OS 11.1.0\nPalo Alto Networks PAN-OS 10.2.0\nPalo Alto Networks Prisma Access 10.2.0\nPalo Alto Networks Prisma Access 11.2.0",
    "sourceHref": "",
    "cvss": {
        "score": 4.7,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Cloud NGFW",
    "version": "All",
    "vendor": "Palo Alto Networks",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}