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CVE-2026-0257

is CVE-2026-0257real, exploitable, or a false positive? Here's the community ground truth.

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Critical · CVSS 9.1EPSS 18.6%CISA KEVCWE-565

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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.

References

NVD MITRE CVE.org CISA KEV

Published

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Community ground truth

Community verdict

3 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 3) — CVSS base score 9.1

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Priya NairCurated

    Palo Alto Networks PAN-OS Authentication Bypass Vulnerability — Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VPN connection. Listed in the CISA KEV catalog (added 2026-05-29) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~19%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Diego RamírezCurated

    Required action for Palo Alto Networks PAN-OS: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA set a federal remediation due date of 2026-06-01. After patching, verify the vulnerable path is no longer reachable before closing the finding.