CVE-2026-33983

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Source
https://cve.org/CVERecord?id=CVE-2026-33983
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33983.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-33983
Aliases
  • GHSA-4gfm-4p52-h478
Downstream
Related
Published
2026-03-30T21:42:27.798Z
Modified
2026-04-21T10:59:01.926661401Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
FreeRDP: Progressive Codec Quant BYTE Underflow - UB + CPU DoS
Details

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, progressivedecompresstileupgrade() detects a mismatch via progressiverfxquantcmpequal() but only emits WLogWARN, execution continues. The wrapped value (247) is used as a shift exponent, causing undefined behavior and an approximately 80 billion iteration loop (CPU DoS). This issue has been patched in version 3.24.2.

Database specific 
{
    "cwe_ids": [
        "CWE-190",
        "CWE-252"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33983.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/freerdp/freerdp

Affected ranges

Type
GIT
Repo
https://github.com/freerdp/freerdp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3028b706908f81767d9b9c744a90778c28f57d61
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.24.2"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33983.json"