CVE-2026-91947

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Source
https://cve.org/CVERecord?id=CVE-2026-91947
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91947.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91947
Aliases
  • GHSA-6mpx-c8rj-whj5
Downstream
Published
2026-09-15T15:18:05Z
Modified
2026-09-17T03:47:28Z
Severity
  • 7.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
FreeRDP Server before 3.31.0 Use-After-Free via DRDYNVC
Details

FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser that dereferences a channel pointer after releasing the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-free when accessing freed channel objects.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-362"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91947.json"
}
References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type
GIT
Repo
https://github.com/freerdp/freerdp
Events
Introduced
5ab2bed8749747b8e4b2ed431fd102bc726be684
Fixed
aa8650b300aa4cabd85d9c72b431301509b9043f
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "2.0.0"
        },
        {
            "fixed": "3.31.0"
        },
        {
            "introduced": "0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

2.*
2.0.0
3.*
3.0.0
3.0.0-beta1
3.0.0-beta2
3.0.0-beta3
3.0.0-beta4
3.0.0-rc0
3.1.0
3.2.0
3.3.0
3.4.0
3.5.0
3.5.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91947.json"