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Dossier · Vulnerability

Actively exploited · CISA KEV · NVD published 2026-05-13

CVE-2026-0257

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.

  1. First PoC
  2. 141 days →First cited attacker

Signals

Exploited in the wild
Yesadded 2026-05-29 · due 2026-06-01 · known ransomware use. An observation, not a forecast.
EPSS · 30-day forecast
97%Chance of exploitation in the next 30 days, 100th percentile of all CVEs. A forecast; KEV outranks it.
CVSS · NVD · CRITICAL
9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Internet exposure
not stated by sourcesNo exposure census on this CVE's dispatches.

Exploits

8 known · links only

GitHub PoCs · by trust, then stars7

  1. sfewer-r7/CVE-2026-0257 ↗Trust ok 100

    Proof-of-concept script to leverage the PAN-OS GlobalProtect authentication bypass CVE-2026-0257

    ★ 30 · created 2026-05-29

  2. 0xBlackash/CVE-2026-0257 ↗Trust ok 100

    CVE-2026-0257

    ★ 3 · created 2026-05-30

  3. tushargurav28/CVE-2026-0257 ↗Trust ok 100

    Palo Alto Networks PAN-OS contains an authentication bypass caused by flaws in the GlobalProtect portal and gateway, letting attackers establish unauthorized VPN connections, exploit requires network access to the portal or gateway.

    ★ 3 · created 2026-06-03

  4. akashsingh0454/CVE-2026-0257-PoC ↗Trust ok 100

    ★ 2 · created 2026-05-29

  5. grayxploit/CVE-2026-0257 ↗Trust ok 100

    GrayXploit Security research and defensive team validate this toolkit for CVE-2026-0257 (PAN-OS GlobalProtect Authentication Bypass). Includes vulnerability assessment, detection guidance, technical analysis, indicators of compromise (IOCs), and remediation validation resources for security teams and defenders.

    ★ 2 · created 2026-06-10

  6. Ez4rd1x1/CVE-2026-0257 ↗Trust ok 100

    testing

    ★ 0 · created 2026-06-15

  7. HORKimhab/CVE-2026-0257 ↗Trust ok 100

    CVE-2026-0257 - PAN-OS

    ★ 0 · created 2026-05-30

Fake proof-of-concept repositories have been used to deliver malware to the researchers who run them. The trust verdict is our engine's heuristic over the repository (account age, what it ships, how its stars arrived); it is a reason to read the code first, not a finding about its author.

Nuclei1

  1. Palo Alto Networks PAN-OS - Authentication Bypass ↗

    Palo Alto Networks PAN-OS contains an authentication bypass caused by flaws in the GlobalProtect portal and gateway, letting attackers establish unauthorized VPN connections, exploit requires network access to the portal or gateway.

    yaml · seen 2026-10-18

On the wire

0 dispatches

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