CVE-2026-33952

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Source

https://cve.org/CVERecord?id=CVE-2026-33952

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33952.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-33952

Aliases

GHSA-4v4p-9v5x-hc93

Downstream

DEBIAN-CVE-2026-33952

UBUNTU-CVE-2026-33952

Published

2026-03-30T21:42:00.473Z

Modified

2026-04-10T05:42:58.896961Z

Severity

6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

FreeRDP: DoS via WINPR_ASSERT in rts_read_auth_verifier_no_checks

Details

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, an unvalidated authlength field read from the network triggers a WINPRASSERT() failure in rtsreadauthverifiernochecks(), causing any FreeRDP client connecting through a malicious RDP Gateway to crash with SIGABRT. This is a pre-authentication denial of service affecting all FreeRDP clients using RPC-over-HTTP gateway transport. The assertion is active in default release builds (WITHVERBOSEWINPRASSERT=ON). This issue has been patched in version 3.24.2.

Database specific

{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33952.json",
    "cwe_ids": [
        "CWE-617"
    ]
}

References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type

GIT

Repo

https://github.com/freerdp/freerdp

Events

Introduced

Fixed

3028b706908f81767d9b9c744a90778c28f57d61

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.24.2"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33952.json"