{
  "threat_severity" : "Important",
  "public_date" : "2025-02-25T00:00:00Z",
  "bugzilla" : {
    "description" : "xorg: xwayland: Heap overflow in XkbWriteKeySyms()",
    "id" : "2345256",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2345256"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.8",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-787",
  "details" : [ "A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.", "A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow." ],
  "statement" : "Xorg server does not run with root privileges in Red Hat Enterprise Linux 8 and 9, therefore, Red Hat Enterprise Linux 8 and 9 have been rated with a Moderate severity and are not affected by this bug.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:7458",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.0",
    "package" : "xorg-x11-server-Xwayland-0:24.1.5-3.el10_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
    "release_date" : "2025-04-17T00:00:00Z",
    "advisory" : "RHSA-2025:3976",
    "cpe" : "cpe:/o:redhat:rhel_els:6",
    "package" : "tigervnc-0:1.1.0-25.el6_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2861",
    "cpe" : "cpe:/o:redhat:rhel_els:7",
    "package" : "tigervnc-0:1.8.0-36.el7_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2879",
    "cpe" : "cpe:/o:redhat:rhel_els:7",
    "package" : "xorg-x11-server-0:1.20.4-30.el7_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2025-03-10T00:00:00Z",
    "advisory" : "RHSA-2025:2502",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "tigervnc-0:1.13.1-15.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Advanced Update Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2866",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.2",
    "package" : "tigervnc-0:1.9.0-15.el8_2.13"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2865",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.4",
    "package" : "tigervnc-0:1.11.0-8.el8_4.12"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Telecommunications Update Service",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2865",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.4",
    "package" : "tigervnc-0:1.11.0-8.el8_4.12"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2865",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.4",
    "package" : "tigervnc-0:1.11.0-8.el8_4.12"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2880",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.6",
    "package" : "tigervnc-0:1.12.0-6.el8_6.13"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2880",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.6",
    "package" : "tigervnc-0:1.12.0-6.el8_6.13"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2880",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.6",
    "package" : "tigervnc-0:1.12.0-6.el8_6.13"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.8 Extended Update Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2862",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.8",
    "package" : "tigervnc-0:1.12.0-15.el8_8.12"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-03-10T00:00:00Z",
    "advisory" : "RHSA-2025:2500",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "tigervnc-0:1.14.1-1.el9_5.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:7163",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "xorg-x11-server-0:1.20.11-28.el9_6",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:7165",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "xorg-x11-server-Xwayland-0:23.2.7-3.el9_6",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2873",
    "cpe" : "cpe:/a:redhat:rhel_e4s:9.0",
    "package" : "tigervnc-0:1.11.0-22.el9_0.13"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.2 Extended Update Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2874",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.2",
    "package" : "tigervnc-0:1.12.0-14.el9_2.10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2025-03-17T00:00:00Z",
    "advisory" : "RHSA-2025:2875",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "tigervnc-0:1.13.1-8.el9_4.5"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "xorg-x11-server",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "xorg-x11-server",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "impact" : "moderate"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "xorg-x11-server-Xwayland",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "impact" : "moderate"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-26596\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-26596" ],
  "name" : "CVE-2025-26596",
  "mitigation" : {
    "value" : "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}