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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dd544bb18226232b82208abd930d640813d353ac4a53213fbda62803faa2c3b3
Known exploited
CISA KEV
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"defaultStatus":"unaffected","product":"Cloud NGFW","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"changes":[{"at":"10.2.10-h36","status":"unaffected"}],"lessThan":"10.2.10-h36","status":"affected","version":"10.2.0","versionType":"custom"},{"changes":[{"at":"11.2.7-h13","status":"unaffected"}],"lessThan":"11.2.7-h13","status":"affected","version":"11.2.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/affected/2

{"cpes":["cpe:2.3:o:palo_alto_networks:pan-os:12.1.6:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.5:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h5:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h3:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h2:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:-:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.11:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h6:*:*:*:*:…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"RUGGEDCOM APE1808","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/adp/1/affected/0

Affected products and versions

4 source assertions
{"defaultStatus":"unaffected","product":"Cloud NGFW","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"changes":[{"at":"10.2.10-h36","status":"unaffected"}],"lessThan":"10.2.10-h36","status":"affected","version":"10.2.0","versionType":"custom"},{"changes":[{"at":"11.2.7-h13","status":"unaffected"}],"lessThan":"11.2.7-h13","status":"affected","version":"11.2.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/affected/2
{"cpes":["cpe:2.3:o:palo_alto_networks:pan-os:12.1.6:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.5:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h5:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h3:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h2:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:-:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.11:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h6:*:*:*:*:…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"RUGGEDCOM APE1808","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/adp/1/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NO","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.8,"baseSeverity":"HIGH","exploitMaturity":"ATTACKED","privilegesRequired":"NONE","providerUrgency":"RED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"DIFFUSE","vectorString":"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:A/AU:N/R:A/V:D/RE:M/U:Red","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-565","description":"CWE-565 Reliance on Cookies without Validation and Integrity Checking","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/problemTypes/0/descriptions/0

Known exploitation assertions

2 source assertions
{"cwes":["CWE-565"],"dateAdded":"2026-05-29","dueDate":"2026-06-01","knownRansomwareCampaignUse":"Known","notes":"https://security.paloaltonetworks.com/CVE-2026-0257 ; https://nvd.nist.gov/vuln/detail/CVE-2026-0257","product":"PAN-OS","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","shortDescription":"Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VP…
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:8c4914935ec4c77e45419ddca4a5a2317110fdbdd5ca638ac3e4a22ecebb3a4a · sha256:16acee8334e59e44… · /vulnerabilities/50
    Open source location →
{"cwes":["CWE-565"],"dateAdded":"2026-05-29","dueDate":"2026-06-01","knownRansomwareCampaignUse":"Known","notes":"https://security.paloaltonetworks.com/CVE-2026-0257 ; https://nvd.nist.gov/vuln/detail/CVE-2026-0257","product":"PAN-OS","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","shortDescription":"Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VP…
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:9cb42c20217574fec8ea4036093ed3ec5cc567d4cad98bb1a36cb5e969258847 · sha256:635dff916c4092c0… · /vulnerabilities/53
    Open source location →

Source references

3 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-967325.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/adp/1/references/0
{"tags":["vendor-advisory"],"url":"https://security.paloaltonetworks.com/CVE-2026-0257"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/cna/references/0
{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-0257"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77ea505e360db2e579ea7e3a089e07ead223afef7f3e98d8f0681a75eaf37248 · sha256:330d8a43c4235f99… · /containers/adp/0/references/0

Attribution and limitations

  • CISA Known Exploited Vulnerabilities JSON: CISA named for provenance; do not use CISA/DHS marks or imply endorsement Source →
  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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