{
  "threat_severity" : "Moderate",
  "public_date" : "2026-03-24T00:00:00Z",
  "bugzilla" : {
    "description" : "freeipmi: buffer overflows on response messages via ipmi-oem",
    "id" : "2450778",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2450778"
  },
  "cvss3" : {
    "cvss3_base_score" : "8.8",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-120",
  "details" : [ "ipmi-oem in FreeIPMI before 1.6.17 has exploitable buffer overflows on response messages. The Intelligent Platform Management Interface (IPMI) specification defines a set of interfaces for platform management. It is implemented by a large number of hardware manufacturers to support system management. It is most commonly used for sensor reading (e.g., CPU temperatures through the ipmi-sensors command within FreeIPMI) and remote power control (the ipmipower command). The ipmi-oem client command implements a set of a IPMI OEM commands for specific hardware vendors. If a user has supported hardware, they may wish to use the ipmi-oem command to send a request to a server to retrieve specific information. Three subcommands were found to have exploitable buffer overflows on response messages. They are: \"ipmi-oem dell get-last-post-code - get the last POST code and string describing the error on some Dell servers,\" \"ipmi-oem supermicro extra-firmware-info - get extra firmware info on Supermicro servers,\" and \"ipmi-oem wistron read-proprietary-string - read a proprietary string on Wistron servers.\"", "A flaw was found in FreeIPMI. The `ipmi-oem` program is used to send Intelligent Platform Management Interface (IPMI) OEM commands for specific hardware vendors to retrieve specific information from the hardware. A malicious server can reply with crafted response messages and cause buffer overflows when processed, potentially resulting in a denial of service and memory corruption." ],
  "statement" : "To exploit this vulnerability, a user needs to execute the `ipmi-oem` program to retrieve information from a compromised or malicious Baseboard Management Controller (BMC) server, limiting the exposure of this flaw.\nSpecifically, the following `ipmi-oem` commands are vulnerable to this issue:\n- ipmi-oem dell get-last-post-code\n- ipmi-oem supermicro extra-firmware-info\n- ipmi-oem wistron read-proprietary-string\nDefault Red Hat Enterprise Linux security features, including SELinux enforcement, Address Space Layout Randomization (ASLR) and NX (No-Execute) stack protection, significantly increase the difficulty of achieving arbitrary code execution, limiting the impact of this vulnerability.\nDue to these reasons, this flaw has been rated with a moderate severity.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-05-04T00:00:00Z",
    "advisory" : "RHSA-2026:13515",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.1",
    "package" : "freeipmi-0:1.6.17-1.el10_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-05-19T00:00:00Z",
    "advisory" : "RHSA-2026:19053",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "freeipmi-0:1.6.17-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-05-26T00:00:00Z",
    "advisory" : "RHSA-2026:20579",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "freeipmi-0:1.6.17-1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-07T00:00:00Z",
    "advisory" : "RHSA-2026:14819",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "freeipmi-0:1.6.17-1.el9_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-19T00:00:00Z",
    "advisory" : "RHSA-2026:19208",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "freeipmi-0:1.6.17-1.el9_8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Will not fix",
    "package_name" : "freeipmi",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "freeipmi",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-33554\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-33554\nhttps://ftp.gnu.org/gnu/freeipmi/\nhttps://savannah.gnu.org/bugs/?68140\nhttps://savannah.gnu.org/bugs/?68141\nhttps://savannah.gnu.org/bugs/?68142" ],
  "name" : "CVE-2026-33554",
  "mitigation" : {
    "value" : "To mitigate this issue, ensure all BMCs and the servers running FreeIPMI are isolated on a dedicated and restricted network environment.",
    "lang" : "en:us"
  },
  "csaw" : false
}