{
  "threat_severity" : "Important",
  "public_date" : "2026-05-01T00:00:00Z",
  "bugzilla" : {
    "description" : "frr: denial of service via crafted FlowSpec component",
    "id" : "2464548",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2464548"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-787",
  "details" : [ "An off-by-one out-of-bounds write vulnerability in the bgp_flowspec_op_decode() function (bgpd/bgp_flowspec_util.c) of FRRouting (FRR) stable/10.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted FlowSpec component.", "A flaw was found in FRRouting (FRR). A remote attacker can exploit an off-by-one out-of-bounds write vulnerability in the `bgp_flowspec_op_decode()` function by supplying a specially crafted FlowSpec component. This issue can lead to a Denial of Service (DoS)." ],
  "statement" : "This vulnerability allows an unauthenticated remote attacker to cause a denial of service via a specially crafted FlowSpec component. Due to this reason, this issue has been rated with an important severity.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-06-08T00:00:00Z",
    "advisory" : "RHSA-2026:24347",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "frr-0:10.4.4-1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2026-06-08T00:00:00Z",
    "advisory" : "RHSA-2026:24340",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "frr-0:7.5.1-24.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-06-08T00:00:00Z",
    "advisory" : "RHSA-2026:24370",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "frr10-0:10.4.3-3.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-06-08T00:00:00Z",
    "advisory" : "RHSA-2026:24371",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "frr-0:8.5.3-13.el9_8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-37457\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-37457\nhttps://github.com/FRRouting/frr/commit/0e6882bc72c0278988a47b2f0f73b7a91099a25c" ],
  "name" : "CVE-2026-37457",
  "mitigation" : {
    "value" : "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.",
    "lang" : "en:us"
  },
  "csaw" : false
}