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CVE-2026-83826

Status: Awaiting AnalysisHigh (7.8)—

Untrusted pointer dereference in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

CVSS

Exploitation probability (EPSS)

FIRST hasn't scored this CVE yet (usual for very recent or rejected CVEs).

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

El vector CVSS es AV:L con UI:N, es decir, acceso local sin interacción, y la descripción indica escalada de privilegios local por un puntero no confiable en Windows Error Reporting. No hay impacto adicional sustentado en el texto.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Threat Intelligence ProgramExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Microsoft — Windows Error ReportingAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-83826",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-83826",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-13T20:26:56.332722Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows 11 version 23H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.22631.0",
              "lessThan": "10.0.22631.7652",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 23H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.22631.0",
              "lessThan": "10.0.22631.7652",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 24H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26100.0",
              "lessThan": "10.0.26100.9711",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 25H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26200.0",
              "lessThan": "10.0.26200.9711",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 version 26H1",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.28000.0",
              "lessThan": "10.0.28000.3231",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 26H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26300.0",
              "lessThan": "10.0.26300.9711",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2025",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26100.0",
              "lessThan": "10.0.26100.33650",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2025 (Server Core installation)",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26100.0",
              "lessThan": "10.0.26100.33650",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        }
      ]
    }
  ],
  "published": "2026-10-13T19:20:30.130",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83826",
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-822"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted pointer dereference in Windows Error Reporting allows an authorized attacker to elevate privileges locally."
    }
  ],
  "lastModified": "2026-10-13T21:18:52.743",
  "sourceIdentifier": "secure@microsoft.com"
}