« Back to list

CVE-2026-84869

Status: AnalyzedCritical (9.9)⚠ Active exploitation

A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted.

CVSS

Exploitation probability (EPSS)

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).

CISA KEV — actively exploited

Affected technologies (1)

Connectwise — Screenconnect

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-84869",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-84869",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-10T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
      "affectedData": [
        {
          "vendor": "ConnectWise",
          "product": "ScreenConnect",
          "versions": [
            {
              "status": "affected",
              "version": "All versions prior to 26.6.5"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-08T20:18:51.147",
  "references": [
    {
      "url": "https://github.com/ConnectWise-Advisories/Disclosures/tree/main/CVE-2026-84869",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49"
    },
    {
      "url": "https://www.connectwise.com/company/trust/advisories",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49"
    },
    {
      "url": "https://www.connectwise.com/company/trust/security-bulletins/2026-09-08-screenconnect-bulletin",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-84869",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    },
    {
      "url": "https://www.huntress.com/blog/rogue-screenconnect-installations",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        },
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted."
    }
  ],
  "lastModified": "2026-09-12T04:16:42.757",
  "cisaActionDue": "2026-09-14",
  "cisaExploitAdd": "2026-09-11",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:connectwise:screenconnect:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "270783CF-B4ED-4608-A583-A9F7B80DC877",
              "versionEndExcluding": "26.6.5.9742"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "7d616e1a-3288-43b1-a0dd-0a65d3e70a49",
  "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "cisaVulnerabilityName": "ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability"
}