{
  "threat_severity" : "Important",
  "public_date" : "2026-06-09T09:23:18Z",
  "bugzilla" : {
    "description" : "kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources",
    "id" : "2486958",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2486958"
  },
  "cvss3" : {
    "cvss3_base_score" : "8.4",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-266",
  "details" : [ "Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 & X1C, Cortex-A710, Cortex-A78, A78AE & A78C, Cortex-A77, Cortex-A76 & A76A may allow writes to resources owned by a higher exception level.", "A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation (TLBI) operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local attacker to gain kernel privileges or a guest VM to escape to the hypervisor, resulting in complete system compromise." ],
  "statement" : "This is an Important flaw in the Linux kernel on ARM processors, allowing a local unprivileged attacker to achieve privilege escalation to kernel level or a guest virtual machine to escape to the hypervisor. The vulnerability stems from a race condition during Translation Lookaside Buffer Invalidation (TLBI) operations when memory permissions are altered, enabling writes to higher exception level resources.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-07-02T00:00:00Z",
    "advisory" : "RHSA-2026:34911",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "kernel-0:6.12.0-211.30.1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-07-07T00:00:00Z",
    "advisory" : "RHSA-2026:36348",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-553.140.1.rt7.481.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-07-07T00:00:00Z",
    "advisory" : "RHSA-2026:36349",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-553.140.1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-07-06T00:00:00Z",
    "advisory" : "RHSA-2026:36018",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.22.1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-07-06T00:00:00Z",
    "advisory" : "RHSA-2026:36018",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.22.1.el9_8"
  }, {
    "product_name" : "Red Hat OpenShift Container Platform 4.22",
    "release_date" : "2026-07-21T00:00:00Z",
    "advisory" : "RHSA-2026:40764",
    "cpe" : "cpe:/a:redhat:openshift:4.22::el9",
    "package" : "rhcos-4.22.9.8.202607152026-0"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "libkrun",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux for NVIDIA 26",
    "fix_state" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/a:redhat:enterprise_linux_nvidia:"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-10263\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-10263\nhttps://developer.arm.com/documentation/112137" ],
  "name" : "CVE-2025-10263",
  "csaw" : false
}