{
  "cveId": "CVE-2025-52496",
  "url": "https://patchblox.com/security/cve/CVE-2025-52496",
  "summary": "CVE-2025-52496 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2025-52496, released July 4, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compiler optimizations occur. An attacker may be able to extract an AES key from a multithreaded program, or perform a GCM forgery.",
  "description": "Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compiler optimizations occur. An attacker may be able to extract an AES key from a multithreaded program, or perform a GCM forgery.",
  "published": "2025-07-04T08:15:00Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
  "cwe": "Compiler Optimization Removal or Modification of Security-critical Code",
  "epss": 0.00214,
  "epssPercentile": 0.11793,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-52496",
  "fixes": [
    {
      "platform": "linux",
      "product": "libmbedcrypto1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.8.0-1ubuntu0.1~esm1",
      "fix": "libmbedcrypto1 2.8.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libmbedcrypto1-2.8.0-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedcrypto3",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.16.4-1ubuntu2\u002Besm1",
      "fix": "libmbedcrypto3 2.16.4-1ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libmbedcrypto3-2.16.4-1ubuntu2-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedcrypto7",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.28.0-1ubuntu0.1~esm1",
      "fix": "libmbedcrypto7 2.28.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libmbedcrypto7-2.28.0-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedcrypto7t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.28.8-1ubuntu0.1~esm1",
      "fix": "libmbedcrypto7t64 2.28.8-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libmbedcrypto7t64-2.28.8-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedtls10",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.8.0-1ubuntu0.1~esm1",
      "fix": "libmbedtls10 2.8.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libmbedtls10-2.8.0-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedtls12",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.16.4-1ubuntu2\u002Besm1",
      "fix": "libmbedtls12 2.16.4-1ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libmbedtls12-2.16.4-1ubuntu2-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedtls14",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.28.0-1ubuntu0.1~esm1",
      "fix": "libmbedtls14 2.28.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libmbedtls14-2.28.0-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedtls14t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.28.8-1ubuntu0.1~esm1",
      "fix": "libmbedtls14t64 2.28.8-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libmbedtls14t64-2.28.8-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedx509-0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.8.0-1ubuntu0.1~esm1",
      "fix": "libmbedx509-0 2.8.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libmbedx509-0-2.8.0-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedx509-0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.16.4-1ubuntu2\u002Besm1",
      "fix": "libmbedx509-0 2.16.4-1ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libmbedx509-0-2.16.4-1ubuntu2-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedx509-1",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.28.0-1ubuntu0.1~esm1",
      "fix": "libmbedx509-1 2.28.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libmbedx509-1-2.28.0-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmbedx509-1t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.28.8-1ubuntu0.1~esm1",
      "fix": "libmbedx509-1t64 2.28.8-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libmbedx509-1t64-2.28.8-1ubuntu0.1-esm1",
      "released": "2025-07-20T12:15:00Z"
    },
    {
      "platform": "linux",
      "product": "mbedtls",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.6.4-1",
      "fix": "DEBIAN-CVE-2025-52496",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-52496",
      "released": "2025-07-04T15:15:22Z"
    },
    {
      "platform": "linux",
      "product": "mbedtls",
      "release": "Debian 14",
      "fixedVersion": "3.6.4-1",
      "fix": "DEBIAN-CVE-2025-52496",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-52496",
      "released": "2025-07-04T15:15:22Z"
    },
    {
      "platform": "linux",
      "product": "mbedtls",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.6.6-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:21144-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21144-1",
      "released": "2026-06-22T13:34:13Z"
    },
    {
      "platform": "linux",
      "product": "mbedtls-2",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.28.10-bp160.2.1",
      "fix": "OPENSUSE-SU-2026:21864-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21864-1",
      "released": "2026-09-16T15:11:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}