CVE-2026-64621

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Source
https://cve.org/CVERecord?id=CVE-2026-64621
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64621.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-64621
Aliases
  • GHSA-f27x-frr8-j9hc
Downstream
Related
Published
2026-07-20T12:04:53.788Z
Modified
2026-08-14T17:27:31.473761084Z
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 
{
    "cwe_ids": [
        "CWE-415"
    ],
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64621.json"
}
References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type
GIT
Repo
https://github.com/freerdp/freerdp
Events
Introduced
a34fa7c49d2a39aa49ace1d7bea9656912d8c7cb
Fixed
5370fb26fbf034ecd11d3026b6ad639b5fff493f
Fixed
1f7a716d39b5605bb8a83b0c3c97a6ce386609ef
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.28.0"
        }
    ]
}

Affected versions

3.*
3.0.0
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/osv-test-cve-osv-conversion/osv-output/CVE-2026-64621.json"