CVE-2026-110838 (GCVE-0-2026-110838)

Vulnerability from cvelistv5 – Published: 2026-10-14 22:52 – Updated: 2026-10-14 22:52
VLAI
Title
FreeRDP shadow before 3.32.0 Pre-Authentication Input Injection via Confirm Active bypass
Summary
FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes into the host user's X11 session via XTEST.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-306 - Missing Authentication for Critical Function
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: 3.0.0 , < 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 

{
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              "version": "3.32.0",
              "versionType": "semver"
            }
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-m998-cvfm-9444)",
          "tags": [
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          ],
          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m998-cvfm-9444"
        },
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          "tags": [
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        }
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      "title": "FreeRDP shadow before 3.32.0 Pre-Authentication Input Injection via Confirm Active bypass",
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-110838",
    "datePublished": "2026-10-14T22:52:13.434Z",
    "dateReserved": "2026-10-14T22:11:15.575Z",
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    "state": "PUBLISHED"
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      "percentile": "0.16875"
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          }
        ],
        "id": "CVE-2026-110838",
        "lastModified": "2026-10-15T15:54:26.210",
        "metrics": {
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          "cvssMetricV40": [
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                "Recovery": "NOT_DEFINED",
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                "modifiedAttackVector": "NOT_DEFINED",
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                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
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                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
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                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
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                "valueDensity": "NOT_DEFINED",
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      "cve": "CVE-2026-110838",
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      "product_status:known_affected": "7",
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      "source": "Red Hat CSAF VEX",
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      "title": "freerdp: FreeRDP: Unauthenticated keystroke injection via premature input dispatch",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110838.json",
      "version": "3"
    }
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}



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