CVE-2026-111880 (GCVE-0-2026-111880)

Vulnerability from cvelistv5 – Published: 2026-10-17 18:46 – Updated: 2026-10-17 18:46
VLAI
Title
FreeRDP 2.0.0 before 3.32.0 Heap Out-of-Bounds Write via NTLM MIC Offset
Summary
FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6463 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeRDP FreeRDP Affected: 2.0.0 , < 3.32.0 (semver)
Unaffected: 3.32.0 (semver)
    cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-02 00:00
Credits
Kushalkhemka mayank-jangid-moon skigeek16 opensec-intelligence
Show details on NVD website
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{
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        {
          "defaultStatus": "unaffected",
          "product": "FreeRDP",
          "vendor": "FreeRDP",
          "versions": [
            {
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              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            },
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              "version": "3.32.0",
              "versionType": "semver"
            }
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        }
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      "descriptions": [
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          "value": "FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation."
        }
      ],
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            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
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            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
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      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "Out-of-bounds Write",
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      "providerMetadata": {
        "dateUpdated": "2026-10-17T18:46:08.393Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-cmgx-558f-vh67)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cmgx-558f-vh67"
        },
        {
          "name": "VulnCheck Advisory: FreeRDP 2.0.0 before 3.32.0 Heap Out-of-Bounds Write via NTLM MIC Offset",
          "tags": [
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          "url": "https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-heap-out-of-bounds-write-via-ntlm-mic-offset"
        }
      ],
      "title": "FreeRDP 2.0.0 before 3.32.0 Heap Out-of-Bounds Write via NTLM MIC Offset",
      "x_generator": {
        "engine": "vulncheck-endgame"
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  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-111880",
    "datePublished": "2026-10-17T18:46:08.393Z",
    "dateReserved": "2026-10-17T12:15:56.789Z",
    "dateUpdated": "2026-10-17T18:46:08.393Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-10-19",
      "epss": "0.00321",
      "percentile": "0.23599"
    },
    "nvd": {
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                    "status": "affected",
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                    "versionType": "semver"
                  },
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                  }
                ]
              }
            ],
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          }
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        "cveTags": [],
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          }
        ],
        "id": "CVE-2026-111880",
        "lastModified": "2026-10-17T19:16:28.960",
        "metrics": {
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                "Recovery": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
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                "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": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
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                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
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                "vulnerabilityResponseEffort": "NOT_DEFINED"
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          },
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      "current_release_date": "2026-10-19T10:50:00+00:00",
      "cve": "CVE-2026-111880",
      "id": "CVE-2026-111880",
      "initial_release_date": "2026-10-17T18:46:08.393000+00:00",
      "product_status:known_affected": "26",
      "product_status:known_not_affected": "5",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "freerdp: freerdp: Denial of Service via heap out-of-bounds write in NTLM authentication",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111880.json",
      "version": "3"
    }
  }
}



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