CVE-2026-56297

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Source

https://cve.org/CVERecord?id=CVE-2026-56297

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56297.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-56297

Aliases

GHSA-3mv2-5q57-2v8h

Downstream

DEBIAN-CVE-2026-56297

UBUNTU-CVE-2026-56297

Published

2026-07-08T13:49:01.343Z

Modified

2026-07-15T01:49:07.122941758Z

Severity

8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

FreeRDP - Use-After-Free via Race Condition in DRDYNVC Channel Callback

Details

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcmanchannelclose and dvcmancallonreceive due to improper synchronization of channelcallback access. A malicious RDP server can trigger a race condition by sending DYNVCDATA and DYNVCCLOSE messages concurrently, causing heap-use-after-free in the drdynvc client thread and potentially enabling remote code execution or denial of service.

Database specific

{
    "cwe_ids": [
        "CWE-362"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56297.json",
    "cna_assigner": "VulnCheck"
}

References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type

GIT

Repo

https://github.com/freerdp/freerdp

Events

Introduced

Fixed

e3ef4c71138f76516299cb3637d2d0c59b2a3737

Database specific

{
    "cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.22.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Affected versions

1.*

1.0-beta1

1.0-beta2

1.0-beta4

1.0-beta5

1.0.0

1.0.1

1.1.0-beta+2013071101

1.1.0-beta1

1.1.0-beta1+android2

1.1.0-beta1+android3

1.1.0-beta1+android4

1.1.0-beta1+android5

1.1.0-beta1+ios1

1.1.0-beta1+ios2

1.1.0-beta1+ios3

1.1.0-beta1+ios4

1.2.0-beta1+android7

1.2.0-beta1+android9

2.*

2.0.0

2.0.0-beta1+android10

2.0.0-beta1+android11

2.0.0-rc0

2.0.0-rc1

2.0.0-rc2

2.0.0-rc3

2.0.0-rc4

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-2026-56297.json"