CVE-2026-33986

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-33986
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33986.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33986
Aliases
  • GHSA-h6qw-wxvm-hf97
Downstream
Published
2026-03-30T21:43:21.951Z
Modified
2026-04-10T05:42:59.614537Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
FreeRDP: H.264 YUV Buffer Dimension Desync - Heap OOB Write
Details

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in yuvensurebuffer() in libfreerdp/codec/h264.c, h264->width and h264->height are updated before the reallocation loop. If any winpralignedrecalloc() call fails, the function returns FALSE but width/height are already inflated. 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-2026-33986.json",
    "cwe_ids": [
        "CWE-122",
        "CWE-131"
    ]
}
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 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.24.2"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33986.json"