CVE-2026-64621

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Source

https://cve.org/CVERecord?id=CVE-2026-64621

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64621.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-64621

Aliases

GHSA-f27x-frr8-j9hc

Downstream

DEBIAN-CVE-2026-64621

UBUNTU-CVE-2026-64621

Published

2026-07-20T12:04:53.788Z

Modified

2026-07-22T05:31:52.980569545Z

Severity

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

Summary

FreeRDP before 3.28.0 Double-Free via selectedmonitors

Details

FreeRDP before 3.28.0 (affected 3.x through 3.27.1) contains a double-free vulnerability in freerdpclientrdpfileapplytosettings() (client/common/file.c) when parsing the selectedmonitors field of a .rdp connection file. The MonitorIds array is allocated through the settings object, and a raw non-owning pointer to it is freed on the strtoul error path without clearing settings->MonitorIds, leaving it dangling; at teardown freerdpsettingsfree() frees the same buffer again. An attacker who convinces a victim to open a crafted .rdp file with oversized monitor tokens can trigger a size-controlled double-free in any FreeRDP CLI client (xfreerdp/sdl-freerdp/wlfreerdp) in the default configuration.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64621.json",
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-415"
    ]
}

References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type

GIT

Repo

https://github.com/freerdp/freerdp

Events

Introduced

Fixed

5370fb26fbf034ecd11d3026b6ad639b5fff493f

Database specific

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.28.0"
        }
    ]
}

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-2026-64621.json"