{
  "threat_severity" : "Low",
  "public_date" : "2026-08-01T12:22:18Z",
  "bugzilla" : {
    "description" : "FreeRDP: FreeRDP: Denial of Service via out-of-bounds read in UVC H.264 parser",
    "id" : "2510002",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2510002"
  },
  "cvss3" : {
    "cvss3_base_score" : "2.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
    "status" : "draft"
  },
  "cwe" : "CWE-125",
  "details" : [ "FreeRDP before 3.29.0 contains an out-of-bounds heap read vulnerability in the UVC H.264 extension-unit parser that fails to validate descriptor length before accessing the GUID field. A local attacker with a malicious USB video camera can trigger a heap read beyond allocated bounds during camera stream setup, causing denial of service.", "A flaw was found in FreeRDP. This out-of-bounds read vulnerability in the Universal Video Class (UVC) H.264 extension-unit parser occurs because the software fails to validate descriptor length before accessing the GUID field. A local attacker, by connecting a specially crafted malicious USB video camera, can trigger a read beyond the allocated memory bounds during camera stream setup. This can lead to a denial of service (DoS), making the application unavailable." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Fix deferred",
    "package_name" : "freerdp",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "freerdp",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "freerdp",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "freerdp",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "freerdp",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-66401\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-66401\nhttps://github.com/FreeRDP/FreeRDP/commit/5044d5390035c6fd9a36ad885192d97d21e8a92d\nhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8jj2-67pg-j6mg\nhttps://www.vulncheck.com/advisories/freerdp-before-out-of-bounds-read-via-uvc-h-264" ],
  "name" : "CVE-2026-66401",
  "csaw" : false
}