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High

GFI KerioConnect KOFF < 10.0.9p2 Privilege Escalation

Type: advisorySources: Official CVE List

GFI KerioConnect (Kerio Connect) Outlook Connector (Offline Edition), 'KOFF', before 10.0.9 Patch 2 contains a local privilege escalation vulnerability caused by weak installer permissions that leave the product directory writable by the built-in Users group. A local non-administrative attacker can replace the searchd.exe service binary used by the bundled KOFFIndexingService, which runs as LocalSystem, to execute arbitrary code with NT AUTHORITY\SYSTEM privileges upon the next service start or reboot.

Products
GFI KerioConnect
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-112357
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 02:36 UTC · Revision 1

Source evidence

GFI KerioConnect KOFF < 10.0.9p2 Privilege Escalation

core-cve · Original source

Published 28 Oct 2026, 15:32 UTC

GFI KerioConnect (Kerio Connect) Outlook Connector (Offline Edition), 'KOFF', before 10.0.9 Patch 2 contains a local privilege escalation vulnerability caused by weak installer permissions that leave the product directory writable by the built-in Users group. A local non-administrative attacker can replace the searchd.exe service binary used by the bundled KOFFIndexingService, which runs as LocalSystem, to execute arbitrary code with NT AUTHORITY\SYSTEM privileges upon the next service start or reboot.

cve:CVE-2026-112357

GFI KerioConnect

Fixed versions: Not specified

Complete source record
{
  "id": "2695e865b8897a224536a05c44d32824a036cda42d8833f8ab14636d4e0535ca",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-112357",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "GFI KerioConnect KOFF < 10.0.9p2 Privilege Escalation",
    "summary": "GFI KerioConnect (Kerio Connect) Outlook Connector (Offline Edition), 'KOFF', before 10.0.9 Patch 2 contains a local privilege escalation vulnerability caused by weak installer permissions that leave the product directory writable by the built-in Users group. A local non-administrative attacker can replace the searchd.exe service binary used by the bundled KOFFIndexingService, which runs as LocalSystem, to execute arbitrary code with NT AUTHORITY\\SYSTEM privileges upon the next service start or reboot.",
    "evidence": "cve:CVE-2026-112357",
    "products": [
      {
        "name": {
          "value": "GFI KerioConnect",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-112357",
      "aliases": [
        "CVE-2026-112357"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "Safety": "NOT_DEFINED",
            "version": "4.0",
            "Recovery": "NOT_DEFINED",
            "baseScore": 8.5,
            "Automatable": "NOT_DEFINED",
            "attackVector": "LOCAL",
            "baseSeverity": "HIGH",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "exploitMaturity": "NOT_DEFINED",
            "providerUrgency": "NOT_DEFINED",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "LOW",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "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"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "GFI USA, LLC",
          "product": "GFI KerioConnect",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "10.0.9p2",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-28T18:53:58.772Z",
      "provider": "cve",
      "references": [
        "https://gfi.ai/resource/kerioconnect-product-releases/",
        "https://www.vulncheck.com/advisories/gfi-kerioconnect-koff-9p2-privilege-escalation"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-28T18:53:58.772Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-112357",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 477100,
  "published_at": "2026-10-28T15:32:47.972+00:00"
}