FKIE_CVE-2026-0263

Vulnerability from fkie_nvd - Published: 2026-05-13 18:16 - Updated: 2026-06-17 10:10
Severity
7.2 (High) - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:U/AU:Y/R:U/V:C/RE:H/U:Red
Summary
A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software allows an unauthenticated network-based attacker to execute arbitrary code with elevated privileges on the firewall, or cause a denial of service (DoS) condition. Panorama, Cloud NGFW, and Prisma® Access are not impacted by these vulnerabilities.
References
psirt@paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2026-0263
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
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          "product": "Cloud NGFW",
          "vendor": "Palo Alto Networks",
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              "versionType": "custom"
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          ],
          "defaultStatus": "unaffected",
          "product": "PAN-OS",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "changes": [
                {
                  "at": "12.1.7",
                  "status": "unaffected"
                },
                {
                  "at": "12.1.4-h5",
                  "status": "unaffected"
                }
              ],
              "lessThan": "12.1.7, 12.1.4-h5",
              "status": "affected",
              "version": "12.1.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "11.2.12",
                  "status": "unaffected"
                },
                {
                  "at": "11.2.10-h6",
                  "status": "unaffected"
                },
                {
                  "at": "11.2.7-h13",
                  "status": "unaffected"
                },
                {
                  "at": "11.2.4-h17",
                  "status": "unaffected"
                }
              ],
              "lessThan": "11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17",
              "status": "affected",
              "version": "11.2.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "11.1.15",
                  "status": "unaffected"
                },
                {
                  "at": "11.1.13-h5",
                  "status": "unaffected"
                },
                {
                  "at": "11.1.10-h25",
                  "status": "unaffected"
                },
                {
                  "at": "11.1.7-h6",
                  "status": "unaffected"
                },
                {
                  "at": "11.1.6-h32",
                  "status": "unaffected"
                },
                {
                  "at": "11.1.4-h33",
                  "status": "unaffected"
                }
              ],
              "lessThan": "11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33",
              "status": "affected",
              "version": "11.1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "10.2.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Prisma Access",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "status": "unaffected",
              "version": "All",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "psirt@paloaltonetworks.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS\u00ae software allows an unauthenticated network-based attacker to execute arbitrary code with elevated privileges on the firewall, or cause a denial of service (DoS) condition.\n\n\nPanorama, Cloud NGFW, and Prisma\u00ae Access are not impacted by these vulnerabilities."
    }
  ],
  "id": "CVE-2026-0263",
  "lastModified": "2026-06-17T10:10:39.817",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "YES",
          "Recovery": "USER",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "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": "NONE",
          "providerUrgency": "RED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "NONE",
          "valueDensity": "CONCENTRATED",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/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:Y/R:U/V:C/RE:H/U:Red",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "HIGH"
        },
        "source": "psirt@paloaltonetworks.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-0263",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-13T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-13T18:16:14.003",
  "references": [
    {
      "source": "psirt@paloaltonetworks.com",
      "url": "https://security.paloaltonetworks.com/CVE-2026-0263"
    }
  ],
  "sourceIdentifier": "psirt@paloaltonetworks.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "psirt@paloaltonetworks.com",
      "type": "Secondary"
    }
  ]
}


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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.