CVE-2026-109951

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Source
https://cve.org/CVERecord?id=CVE-2026-109951
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109951.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109951
Aliases
  • GHSA-g4wg-67xq-8q53
Downstream
Published
2026-10-13T13:27:17Z
Modified
2026-10-28T02:30:59Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
FreeRDP 3.17.1 before 3.32.0 Heap Buffer Over-Read via Proxy DRDYNVC Channel Name
Details

FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-read vulnerability in DynvcTrackerHandleCreateBack of the freerdp-proxy DRDYNVC channel handler that allows malicious backend RDP servers to read heap memory out of bounds. Attackers can send a CREATE_REQUEST_PDU whose channel name lacks a NUL byte, causing an unbounded snprintf read that leaks memory into proxy logs or crashes the process.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109951.json"
}
References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type
GIT
Repo
https://github.com/freerdp/freerdp
Events
Introduced
854937b55bbb81a92114cc1e6f5ddcaa8d22a669
Fixed
d27a4f7c1c63b62a5e60e5d939ad116cfb58ffc1
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "3.17.1"
                },
                {
                    "fixed": "3.32.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "3.17.1"
                },
                {
                    "fixed": "3.32.0"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109951.json"