Vulnerability-Lookup

CVE-2026-37459 (GCVE-0-2026-37459)

Vulnerability from cvelistv5 – Published: 2026-05-04 00:00 – Updated: 2026-07-15 01:02

Summary

An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-400 - Uncontrolled Resource Consumption
CWE-191 - Integer Underflow (Wrap or Wraparound)

Assigner

mitre

References

6 references

URL	Tags
https://github.com/FRRouting/frr/commit/693a2e026…
https://access.redhat.com/security/cve/CVE-2026-37459	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2466513	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:24347	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24370	vendor-advisoryx_refsource_REDHAT

Impacted products

4 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:10.4.4-1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:10.4.3-3.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-37459",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-04T19:47:42.668064Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-04T19:48:06.779Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "affected",
            "packageName": "frr",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:10.4.4-1.el10_2",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "affected",
            "packageName": "frr10",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:10.4.3-3.el9_8",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "affected",
            "packageName": "frr",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "affected",
            "packageName": "frr",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-05-04T00:00:00.000Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in FRRouting (FRR). An unauthenticated remote attacker can exploit an integer underflow vulnerability by supplying a specially crafted BGP (Border Gateway Protocol) UPDATE message. This issue can lead to a Denial of Service (DoS)."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-191",
                "description": "Integer Underflow (Wrap or Wraparound)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-15T01:02:29.780Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-37459"
          },
          {
            "name": "RHBZ#2466513",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2466513"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-37459.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:24347"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:24370"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:24347: Red Hat Enterprise Linux AppStream (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:24370: Red Hat Enterprise Linux AppStream (v. 9)"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-05-04T19:02:45.777Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-05-04T00:00:00.000Z",
            "value": "Made public."
          }
        ],
        "title": "frr: denial of service via crafted BGP UPDATE message",
        "workarounds": [
          {
            "lang": "en",
            "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."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-04T17:35:56.251Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-37459",
    "datePublished": "2026-05-04T00:00:00.000Z",
    "dateReserved": "2026-04-06T00:00:00.000Z",
    "dateUpdated": "2026-07-15T01:02:29.780Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-37459",
      "date": "2026-07-24",
      "epss": "0.00371",
      "percentile": "0.29682"
    },
    "microsoft_vex": {
      "current_release_date": "2026-05-19T01:39:27.000Z",
      "cve": "CVE-2026-37459",
      "id": "msrc_CVE-2026-37459",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-37459.json",
      "version": "2"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-37459\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2026-05-04T18:16:28.807\",\"lastModified\":\"2026-07-15T02:20:44.660\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.\"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"n/a\",\"versions\":[{\"version\":\"n/a\",\"status\":\"affected\"}]}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"affectedData\":[{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 10\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"frr\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:10.2\"],\"versions\":[{\"version\":\"0:10.4.4-1.el10_2\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"frr10\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux:9\"],\"versions\":[{\"version\":\"0:10.4.3-3.el9_8\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"frr\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:8\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"frr\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:9\"]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-05-04T19:47:42.668064Z\",\"id\":\"CVE-2026-37459\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-191\"}]}],\"references\":[{\"url\":\"https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:24347\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:24370\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2026-37459\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2466513\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-37459.json\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T11:12:54+00:00",
      "cve": "CVE-2026-37459",
      "id": "CVE-2026-37459",
      "initial_release_date": "2026-05-04T00:00:00+00:00",
      "product_status:fixed": "28",
      "product_status:known_affected": "7",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "frr: denial of service via crafted BGP UPDATE message",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-37459.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-07-01T03:28:25Z",
      "cve": "CVE-2026-37459",
      "id": "CVE-2026-37459",
      "initial_release_date": "2026-05-06T01:41:53Z",
      "product_status:known_not_affected": "361",
      "product_status:recommended": "15",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-37459",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-37459.json",
      "version": "5"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-37459\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-04T19:47:42.668064Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400 Uncontrolled Resource Consumption\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-04T19:48:03.199Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2026-05-04T17:35:56.251Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-37459\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-04T19:48:06.779Z\", \"dateReserved\": \"2026-04-06T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2026-05-04T00:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

ubuntu-cve-2026-37459

Vulnerability from osv_ubuntu

Published

2026-05-04 18:16

Modified

2026-06-30 16:20

Summary

Details

An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-37459	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-37459	REPORT
	https://ubuntu.com/security/notices/USN-8376-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "quagga",
            "binary_version": "0.99.24.1-2ubuntu1.4+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "quagga",
        "purl": "pkg:deb/ubuntu/quagga@0.99.24.1-2ubuntu1.4+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.99.24.1-2",
        "0.99.24.1-2ubuntu1",
        "0.99.24.1-2ubuntu1.1",
        "0.99.24.1-2ubuntu1.2",
        "0.99.24.1-2ubuntu1.3",
        "0.99.24.1-2ubuntu1.4",
        "0.99.24.1-2ubuntu1.4+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "quagga",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-bgpd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-core",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-isisd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-ospf6d",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-ospfd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-pimd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-ripd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "quagga-ripngd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "quagga",
        "purl": "pkg:deb/ubuntu/quagga@1.2.4-1ubuntu0.1~esm2?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.1-3",
        "1.1.1-3ubuntu1",
        "1.2.2-1",
        "1.2.2-1ubuntu1",
        "1.2.4-1",
        "1.2.4-1ubuntu0.1~esm1",
        "1.2.4-1ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "quagga",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-bgpd",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-core",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-isisd",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-ospf6d",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-ospfd",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-pimd",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-ripd",
            "binary_version": "1.2.4-4ubuntu0.5"
          },
          {
            "binary_name": "quagga-ripngd",
            "binary_version": "1.2.4-4ubuntu0.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "quagga",
        "purl": "pkg:deb/ubuntu/quagga@1.2.4-4ubuntu0.5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.4-4build1",
        "1.2.4-4ubuntu0.1",
        "1.2.4-4ubuntu0.4",
        "1.2.4-4ubuntu0.5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "frr",
            "binary_version": "10.4.1-3ubuntu1.4"
          },
          {
            "binary_name": "frr-pythontools",
            "binary_version": "10.4.1-3ubuntu1.4"
          },
          {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "10.4.1-3ubuntu1.4"
          },
          {
            "binary_name": "frr-snmp",
            "binary_version": "10.4.1-3ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "frr",
        "purl": "pkg:deb/ubuntu/frr@10.4.1-3ubuntu1.4?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.4.1-3ubuntu1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.2.1-1ubuntu3",
        "10.3-3ubuntu2",
        "10.4.1-3ubuntu1",
        "10.4.1-3ubuntu1.1",
        "10.4.1-3ubuntu1.2",
        "10.4.1-3ubuntu1.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "frr",
            "binary_version": "10.5.1-1ubuntu4.1"
          },
          {
            "binary_name": "frr-pythontools",
            "binary_version": "10.5.1-1ubuntu4.1"
          },
          {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "10.5.1-1ubuntu4.1"
          },
          {
            "binary_name": "frr-snmp",
            "binary_version": "10.5.1-1ubuntu4.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "frr",
        "purl": "pkg:deb/ubuntu/frr@10.5.1-1ubuntu4.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.5.1-1ubuntu4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.4.1-3ubuntu1",
        "10.4.1-3ubuntu2",
        "10.5.1-1ubuntu1",
        "10.5.1-1ubuntu2",
        "10.5.1-1ubuntu3",
        "10.5.1-1ubuntu4"
      ]
    }
  ],
  "aliases": [],
  "details": "An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.",
  "id": "UBUNTU-CVE-2026-37459",
  "modified": "2026-06-30T16:20:57Z",
  "published": "2026-05-04T18:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-37459"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-37459"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8376-1"
    }
  ],
  "related": [
    "USN-8376-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-37459"
  ]
}

WID-SEC-W-2026-1353

Vulnerability from csaf_certbund - Published: 2026-05-04 22:00 - Updated: 2026-06-11 22:00

Summary

FRRouting Project FRRouting: Mehrere Schwachstellen ermöglichen Denial of Service

Severity

Mittel

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: FRRouting (FRR) ist eine freie und quelloffene Internet-Routing-Protokollsuite für Linux- und Unix-Plattformen. Es implementiert BGP, OSPF, RIP, IS-IS, PIM, LDP, BFD, Babel, PBR, OpenFabric und VRRP, mit Alpha-Unterstützung für EIGRP und NHRP.

Angriff: Ein Angreifer kann mehrere Schwachstellen in FRRouting Project FRRouting ausnutzen, um einen Denial of Service Angriff durchzuführen.

Betroffene Betriebssysteme: - Sonstiges - UNIX

CVE-2026-37458

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
SUSE openSUSE SUSE	`cpe:/o:suse:opensuse:-`	—
Microsoft Azure Linux azl3 Microsoft / Azure Linux	`cpe:/o:microsoft:azure_linux:azl3`	azl3
RESF Rocky Linux RESF	`cpe:/o:resf:rocky_linux:-`	—

Last affected 1 product

Product	Identifier	Version	Remediation
FRRouting Project FRRouting <=10.6 FRRouting Project / FRRouting		<=10.6

CVE-2026-37459

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
SUSE openSUSE SUSE	`cpe:/o:suse:opensuse:-`	—
Microsoft Azure Linux azl3 Microsoft / Azure Linux	`cpe:/o:microsoft:azure_linux:azl3`	azl3
RESF Rocky Linux RESF	`cpe:/o:resf:rocky_linux:-`	—

Last affected 1 product

Product	Identifier	Version	Remediation
FRRouting Project FRRouting <=10.6 FRRouting Project / FRRouting		<=10.6

References

15 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://www.cve.org/CVERecord?id=CVE-2026-37458	external
https://www.cve.org/CVERecord?id=CVE-2026-37459	external
https://euvd.enisa.europa.eu/enisa/EUVD-2026-26977	external
https://euvd.enisa.europa.eu/enisa/EUVD-2026-27047	external
https://lists.opensuse.org/archives/list/security…	external
https://msrc.microsoft.com/update-guide/	external
https://security-tracker.debian.org/tracker/DSA-6322-1	external
https://access.redhat.com/errata/RHSA-2026:24347	external
https://lists.opensuse.org/archives/list/security…	external
https://lists.suse.com/pipermail/sle-security-upd…	external
https://access.redhat.com/errata/RHSA-2026:24370	external
https://errata.build.resf.org/RLSA-2026:24347	external
https://errata.build.resf.org/RLSA-2026:24370	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "FRRouting (FRR) ist eine freie und quelloffene Internet-Routing-Protokollsuite f\u00fcr Linux- und Unix-Plattformen. Es implementiert BGP, OSPF, RIP, IS-IS, PIM, LDP, BFD, Babel, PBR, OpenFabric und VRRP, mit Alpha-Unterst\u00fctzung f\u00fcr EIGRP und NHRP.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in FRRouting Project FRRouting ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1353 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1353.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1353 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1353"
      },
      {
        "category": "external",
        "summary": "CVERecord vom 2026-05-04",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-37458"
      },
      {
        "category": "external",
        "summary": "CVERecord vom 2026-05-04",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-37459"
      },
      {
        "category": "external",
        "summary": "EU Vulnerability Database vom 2026-05-04",
        "url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-26977"
      },
      {
        "category": "external",
        "summary": "EU Vulnerability Database vom 2026-05-04",
        "url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-27047"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10721-1 vom 2026-05-10",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/6MBNQOJHLAK7J6TDOPPAYIRZE3I7NG6Q/"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Update Guide vom 2026-05-12",
        "url": "https://msrc.microsoft.com/update-guide/"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6322 vom 2026-06-04",
        "url": "https://security-tracker.debian.org/tracker/DSA-6322-1"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24347 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24347"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:20898-1 vom 2026-06-05",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/7J3QS2TXCMGSM3WJDSR27XGRCOEOBLI7/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:22026-1 vom 2026-06-08",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026624.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:24370 vom 2026-06-08",
        "url": "https://access.redhat.com/errata/RHSA-2026:24370"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:24347 vom 2026-06-11",
        "url": "https://errata.build.resf.org/RLSA-2026:24347"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:24370 vom 2026-06-11",
        "url": "https://errata.build.resf.org/RLSA-2026:24370"
      }
    ],
    "source_lang": "en-US",
    "title": "FRRouting Project FRRouting: Mehrere Schwachstellen erm\u00f6glichen Denial of Service",
    "tracking": {
      "current_release_date": "2026-06-11T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-12T07:37:53.862+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1353",
      "initial_release_date": "2026-05-04T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-04T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-05-10T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-05-11T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates aufgenommen"
        },
        {
          "date": "2026-06-04T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-06-07T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Red Hat und openSUSE aufgenommen"
        },
        {
          "date": "2026-06-08T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE und Red Hat aufgenommen"
        },
        {
          "date": "2026-06-11T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        }
      ],
      "status": "final",
      "version": "7"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e=10.0",
                "product": {
                  "name": "FRRouting Project FRRouting \u003e=10.0",
                  "product_id": "T053518"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=10.0",
                "product": {
                  "name": "FRRouting Project FRRouting \u003e=10.0",
                  "product_id": "T053518-fixed"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c=10.6",
                "product": {
                  "name": "FRRouting Project FRRouting \u003c=10.6",
                  "product_id": "T053519"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c=10.6",
                "product": {
                  "name": "FRRouting Project FRRouting \u003c=10.6",
                  "product_id": "T053519-fixed"
                }
              }
            ],
            "category": "product_name",
            "name": "FRRouting"
          }
        ],
        "category": "vendor",
        "name": "FRRouting Project"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "azl3",
                "product": {
                  "name": "Microsoft Azure Linux azl3",
                  "product_id": "T049210",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:microsoft:azure_linux:azl3"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T032255",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "SUSE openSUSE",
            "product": {
              "name": "SUSE openSUSE",
              "product_id": "T027843",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:opensuse:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-37458",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T027843",
          "T049210",
          "T032255"
        ],
        "last_affected": [
          "T053519"
        ]
      },
      "release_date": "2026-05-04T22:00:00.000+00:00",
      "title": "CVE-2026-37458"
    },
    {
      "cve": "CVE-2026-37459",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T027843",
          "T049210",
          "T032255"
        ],
        "last_affected": [
          "T053519"
        ]
      },
      "release_date": "2026-05-04T22:00:00.000+00:00",
      "title": "CVE-2026-37459"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-37459 (GCVE-0-2026-37459)

ubuntu-cve-2026-37459

Vulnerability from osv_ubuntu

WID-SEC-W-2026-1353

Tags

Sightings

Nomenclature