FKIE_CVE-2026-0228

Vulnerability from fkie_nvd - Published: 2026-02-11 18:16 - Updated: 2026-06-17 10:10
Severity
1.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
Summary
An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.
References
psirt@paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2026-0228
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Cloud NGFW",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "status": "unaffected",
              "version": "All",
              "versionType": "custom"
            }
          ]
        },
        {
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            "cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:*",
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            "cpe:2.3:o:palo_alto_networks:pan-os:11.1.3:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:11.1.2:*:*:*:*:*:*:*",
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            "cpe:2.3:o:palo_alto_networks:pan-os:11.1.0:*:*:*:*:*:*:*",
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            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.15:*:*:*:*:*:*:*",
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            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h23:*:*:*:*:*:*",
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            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h17:*:*:*:*:*:*",
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            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h12:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h11:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h10:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h9:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h8:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h7:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h6:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h5:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h4:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h3:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h2:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:h1:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:-:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.9:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.8:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.7:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.6:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.5:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.4:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.3:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.2:*:*:*:*:*:*:*",
            "cpe:2.3:o:palo_alto_networks:pan-os:10.2.1:*:*:*:*:*:*:*",
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          ],
          "defaultStatus": "unaffected",
          "product": "PAN-OS",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "changes": [
                {
                  "at": "11.2.8",
                  "status": "unaffected"
                }
              ],
              "lessThan": "11.2.8",
              "status": "unaffected",
              "version": "12.1.0",
              "versionType": "custom"
            },
            {
              "changes": [
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                  "at": "11.2.8",
                  "status": "unaffected"
                }
              ],
              "lessThan": "11.2.8",
              "status": "affected",
              "version": "11.2.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "11.1.11",
                  "status": "unaffected"
                }
              ],
              "lessThan": "11.1.11",
              "status": "affected",
              "version": "11.1.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "10.2.17",
                  "status": "unaffected"
                }
              ],
              "lessThan": "10.2.17",
              "status": "affected",
              "version": "10.2.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "PAN-OS"
          ],
          "product": "Prisma Access",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "changes": [
                {
                  "at": "11.2.7-h10",
                  "status": "unaffected"
                },
                {
                  "at": "10.2.10-h28",
                  "status": "unaffected"
                }
              ],
              "lessThan": "10.2.10-h28",
              "status": "affected",
              "version": "10.2.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "psirt@paloaltonetworks.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de validaci\u00f3n de certificado incorrecta en PAN-OS permite a los usuarios conectar Agentes de Terminal Server en Windows a PAN-OS usando certificados caducados incluso si la configuraci\u00f3n de PAN-OS normalmente no les permitir\u00eda hacerlo."
    }
  ],
  "id": "CVE-2026-0228",
  "lastModified": "2026-06-17T10:10:33.943",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NO",
          "Recovery": "USER",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 1.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "UNREPORTED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "AMBER",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "DIFFUSE",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "MODERATE"
        },
        "source": "psirt@paloaltonetworks.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-0228",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-11T19:04:04.484997Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-11T18:16:07.720",
  "references": [
    {
      "source": "psirt@paloaltonetworks.com",
      "url": "https://security.paloaltonetworks.com/CVE-2026-0228"
    }
  ],
  "sourceIdentifier": "psirt@paloaltonetworks.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "psirt@paloaltonetworks.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.