CVE-2026-121386 (GCVE-0-2026-121386)

Vulnerability from cvelistv5 – Published: 2026-11-03 14:27 – Updated: 2026-11-03 14:27
VLAI
Title
FreeRDP before 3.32.2 Denial of Service via WinPR PNG/JPEG Image Readers
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability in WinPR's winpr_read_png_from_buffer() and winpr_convert_from_jpeg(), which lack libpng/libjpeg error handling. A malicious RDP server or MITM can offer a malformed PNG or truncated JPEG clipboard payload, causing the client to abort or exit.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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:N/A:H
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7402 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeRDP FreeRDP Affected: 0 , < 3.32.2 (semver)
Unaffected: 3.32.2 (semver)
    cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-19 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
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          "vendor": "FreeRDP",
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              "version": "0",
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            },
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        }
      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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      "providerMetadata": {
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
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          "name": "GitHub Security Advisory (GHSA-799q-hjgw-g55g)",
          "tags": [
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          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-799q-hjgw-g55g"
        },
        {
          "name": "VulnCheck Advisory: FreeRDP before 3.32.2 Denial of Service via WinPR PNG/JPEG Image Readers",
          "tags": [
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          ],
          "url": "https://www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-winpr-png-jpeg-image-readers"
        }
      ],
      "title": "FreeRDP before 3.32.2 Denial of Service via WinPR PNG/JPEG Image Readers",
      "x_generator": {
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  },
  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-121386",
    "datePublished": "2026-11-03T14:27:53.842Z",
    "dateReserved": "2026-11-03T12:26:31.383Z",
    "dateUpdated": "2026-11-03T14:27:53.842Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-11-04",
      "epss": "0.00267",
      "percentile": "0.18967"
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    "nvd": {
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                "vendor": "FreeRDP",
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                ]
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            ],
            "source": "disclosure@vulncheck.com"
          }
        ],
        "configurations": [
          {
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "FreeRDP before 3.32.2 contains a denial of service vulnerability in WinPR\u0027s winpr_read_png_from_buffer() and winpr_convert_from_jpeg(), which lack libpng/libjpeg error handling. A malicious RDP server or MITM can offer a malformed PNG or truncated JPEG clipboard payload, causing the client to abort or exit."
          }
        ],
        "id": "CVE-2026-121386",
        "lastModified": "2026-11-03T21:14:52.110",
        "metrics": {
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          "cvssMetricV40": [
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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",
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                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
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    "redhat_vex": {
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      "current_release_date": "2026-11-04T19:07:49+00:00",
      "cve": "CVE-2026-121386",
      "id": "CVE-2026-121386",
      "initial_release_date": "2026-11-03T14:27:53.842000+00:00",
      "product_status:fixed": "65",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "freerdp: FreeRDP: Denial of Service via malformed image clipboard payloads",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-121386.json",
      "version": "3"
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}



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