CVE-2026-110834 (GCVE-0-2026-110834)

Vulnerability from cvelistv5 – Published: 2026-10-14 22:52 – Updated: 2026-10-14 22:52
VLAI
Title
FreeRDP 2.0.0 before 3.32.0 Denial of Service via Serial IRP Null Handle
Summary
FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create or after close, causing CommReadFile or CommWriteFile to dereference a null handle and terminate clients using Linux serial redirection.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6106 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
2026-09-30 00:00
Credits
Kushalkhemka mayank-jangid-moon skigeek16 opensec-intelligence
Show details on NVD website
To clipboard 

{
  "containers": {
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        {
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          "product": "FreeRDP",
          "vendor": "FreeRDP",
          "versions": [
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              "versionType": "semver"
            },
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              "versionType": "semver"
            }
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      "descriptions": [
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        }
      ],
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            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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      "problemTypes": [
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          "descriptions": [
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              "description": "NULL Pointer Dereference",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-10-14T22:52:09.349Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-pw4j-ff39-9vjm)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm"
        },
        {
          "name": "VulnCheck Advisory: FreeRDP 2.0.0 before 3.32.0 Denial of Service via Serial IRP Null Handle",
          "tags": [
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        }
      ],
      "title": "FreeRDP 2.0.0 before 3.32.0 Denial of Service via Serial IRP Null Handle",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-110834",
    "datePublished": "2026-10-14T22:52:09.349Z",
    "dateReserved": "2026-10-14T22:11:15.575Z",
    "dateUpdated": "2026-10-14T22:52:09.349Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-15",
      "epss": "0.00254",
      "percentile": "0.15767"
    },
    "nvd": {
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                  {
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                    "version": "2.0.0",
                    "versionType": "semver"
                  },
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                    "versionType": "semver"
                  }
                ]
              }
            ],
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          }
        ],
        "cveTags": [],
        "descriptions": [
          {
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          }
        ],
        "id": "CVE-2026-110834",
        "lastModified": "2026-10-14T23:17:23.300",
        "metrics": {
          "cvssMetricV31": [
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          "cvssMetricV40": [
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                "Recovery": "NOT_DEFINED",
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                "availabilityRequirement": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "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": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
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      "cve": "CVE-2026-110834",
      "id": "CVE-2026-110834",
      "initial_release_date": "2026-10-14T22:52:09.349000+00:00",
      "product_status:known_affected": "26",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "freerdp: freerdp: Denial of Service via out-of-lifecycle serial requests",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110834.json",
      "version": "3"
    }
  }
}



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