{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-5265",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-5265",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-24T12:25:06.808Z",
    "updatedAt": "2026-06-17T22:00:07.950Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Ovn: ovn: heap over-read in icmp error response generation",
      "summary": "When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length (ip_tot_len for IPv4, ip6_plen for IPv6) without validating it against the actual packet buffer size. A VM can send a short packet with an inflated IP length field that triggers an ICMP error (e.g., by hitting a reject ACL), causing ovn-controller to read heap memory beyond the valid packet data and include it in the ICMP response sent back to the VM.",
      "affected": [
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 10",
          "packageName": "ovn25.03",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:25.03.2-100.el10fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 10",
          "packageName": "ovn25.09",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:25.09.2-103.el10fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 8",
          "packageName": "ovn-2021",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:21.12.0-145.el8fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 8",
          "packageName": "ovn23.06",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:23.06.4-30.el8fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 9",
          "packageName": "ovn23.06",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:23.06.4-30.el9fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 9",
          "packageName": "ovn23.09",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:23.09.6-16.el9fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 9",
          "packageName": "ovn24.03",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:24.03.7-82.el9fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 9",
          "packageName": "ovn25.03",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:25.03.2-100.el9fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for Red Hat Enterprise Linux 9",
          "packageName": "ovn25.09",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "0:25.09.2-103.el9fdp",
              "status": "unaffected",
              "versionType": "rpm",
              "lessThan": "*"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 7",
          "packageName": "ovn2.11",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 7",
          "packageName": "ovn2.12",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 7",
          "packageName": "ovn2.13",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 8",
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          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
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          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 8",
          "packageName": "ovn2.12",
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          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 8",
          "packageName": "ovn2.13",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 8",
          "packageName": "ovn22.03",
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          "defaultStatus": "affected",
          "versions": []
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          "product": "Fast Datapath for RHEL 8",
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          "product": "Fast Datapath for RHEL 8",
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        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 8",
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          "vendor": "Red Hat",
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          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 9",
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          "versions": []
        },
        {
          "vendor": "Red Hat",
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        },
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          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 9",
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          "defaultStatus": "affected",
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          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 9",
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          "defaultStatus": "affected",
          "versions": []
        },
        {
          "vendor": "Red Hat",
          "product": "Fast Datapath for RHEL 9",
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          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected",
          "versions": []
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  }
}