{
  "cveId": "CVE-2026-44673",
  "url": "https://patchblox.com/security/cve/CVE-2026-44673",
  "summary": "CVE-2026-44673 is fixed in 3 products on 1 platform, first by RHSA-2026:49666, released May 14, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libyang: lyb_read_string() integer overflow \u2192 heap buffer overflow",
  "description": "libyang is a YANG data modeling language library. Prior to SO 5.2.15, lyb_read_string() in src/parser_lyb.c contains an integer overflow that results in a heap buffer overflow when parsing a maliciously crafted LYB binary blob. An attacker who can supply LYB data to any libyang consumer (NETCONF server, sysrepo, etc.) can trigger a crash or potential heap corruption. This vulnerability is fixed in SO 5.2.15.",
  "published": "2026-05-14T20:35:13Z",
  "severity": "Important",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cwe": "Integer Overflow or Wraparound",
  "epss": 0.00635,
  "epssPercentile": 0.50694,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44673",
  "fixes": [
    {
      "platform": "linux",
      "product": "libyang",
      "release": "Debian 14",
      "fixedVersion": "6.4.13-1",
      "fix": "DEBIAN-CVE-2026-44673",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-44673",
      "released": "2026-05-14T21:16:47Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "RHEL 10",
      "fixedVersion": "2.1.148-2.el10_0.1",
      "fix": "RHSA-2026:49666",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-49666",
      "released": "2026-05-14T20:35:13Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "RHEL 8",
      "fixedVersion": "0:1.0.184-2.el8_10",
      "fix": "RHSA-2026:24545",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-24545",
      "released": "2026-06-24T14:07:58Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "RHEL 9",
      "fixedVersion": "0:2.1.148-1.el9_8.1",
      "fix": "RHSA-2026:25051",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-25051",
      "released": "2026-06-24T14:09:17Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "almalinux 10",
      "fixedVersion": "2.1.148-4.el10_2",
      "fix": "ALSA-2026:24758",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-24758",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "almalinux 8",
      "fixedVersion": "1.0.184-2.el8_10",
      "fix": "ALSA-2026:24545",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-24545",
      "released": "2026-06-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "almalinux 9",
      "fixedVersion": "2.1.148-1.el9_8.1",
      "fix": "ALSA-2026:25051",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-25051",
      "released": "2026-06-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "ol 10",
      "fixedVersion": "0:2.1.148-4.el10_2",
      "fix": "ELSA-2026-24758",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-24758",
      "released": "2026-07-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "ol 8",
      "fixedVersion": "0:1.0.184-2.el8_10",
      "fix": "ELSA-2026-24545",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-24545",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "ol 9",
      "fixedVersion": "0:2.1.148-1.el9_8.1",
      "fix": "ELSA-2026-25051",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-25051",
      "released": "2026-06-23T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.1.148-160000.4.1",
      "fix": "OPENSUSE-SU-2026:21113-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21113-1",
      "released": "2026-06-20T06:58:54Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "rocky 10",
      "fixedVersion": "0:2.1.148-4.el10_2",
      "fix": "RLSA-2026:24758",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-24758",
      "released": "2026-06-11T12:05:12Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "rocky 8",
      "fixedVersion": "0:1.0.184-2.el8_10",
      "fix": "RLSA-2026:24545",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-24545",
      "released": "2026-06-11T06:00:31Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "rocky 9",
      "fixedVersion": "0:2.1.148-1.el9_8.1",
      "fix": "RLSA-2026:25051",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-25051",
      "released": "2026-06-13T00:03:17Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "sles 15.6",
      "fixedVersion": "2.1.55-150500.3.5.1",
      "fix": "SUSE-SU-2026:2335-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2335-1",
      "released": "2026-06-10T08:43:17Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "sles 15.7",
      "fixedVersion": "2.1.148-150700.3.5.1",
      "fix": "SUSE-SU-2026:2337-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2337-1",
      "released": "2026-06-10T08:43:47Z"
    },
    {
      "platform": "linux",
      "product": "libyang",
      "release": "sles 16.0",
      "fixedVersion": "2.1.148-160000.4.1",
      "fix": "SUSE-SU-2026:22208-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22208-1",
      "released": "2026-06-20T06:56:16Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:2.1.148-1.el9_8.1",
      "fix": "RHSA-2026:25051",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-25051",
      "released": "2026-06-24T14:09:17Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel",
      "release": "almalinux 10",
      "fixedVersion": "2.1.148-4.el10_2",
      "fix": "ALSA-2026:24758",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-24758",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel",
      "release": "almalinux 9",
      "fixedVersion": "2.1.148-1.el9_8.1",
      "fix": "ALSA-2026:25051",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-25051",
      "released": "2026-06-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel",
      "release": "ol 10",
      "fixedVersion": "0:2.1.148-4.el10_2",
      "fix": "ELSA-2026-24758",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-24758",
      "released": "2026-07-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel",
      "release": "ol 9",
      "fixedVersion": "0:2.1.148-1.el9_8.1",
      "fix": "ELSA-2026-25051",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-25051",
      "released": "2026-06-23T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel-doc",
      "release": "RHEL 9",
      "fixedVersion": "0:2.1.148-1.el9_8.1",
      "fix": "RHSA-2026:25051",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-25051",
      "released": "2026-06-24T14:09:17Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel-doc",
      "release": "almalinux 10",
      "fixedVersion": "2.1.148-4.el10_2",
      "fix": "ALSA-2026:24758",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-24758",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel-doc",
      "release": "almalinux 9",
      "fixedVersion": "2.1.148-1.el9_8.1",
      "fix": "ALSA-2026:25051",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-25051",
      "released": "2026-06-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel-doc",
      "release": "ol 10",
      "fixedVersion": "0:2.1.148-4.el10_2",
      "fix": "ELSA-2026-24758",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-24758",
      "released": "2026-07-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libyang-devel-doc",
      "release": "ol 9",
      "fixedVersion": "0:2.1.148-1.el9_8.1",
      "fix": "ELSA-2026-25051",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-25051",
      "released": "2026-06-23T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}