{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-37459", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-05-04T19:48:06.779Z", "dateReserved": "2026-04-06T00:00:00.000Z", "datePublished": "2026-05-04T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-05-04T17:35:56.251Z"}, "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": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-400", "lang": "en", "description": "CWE-400 Uncontrolled Resource Consumption"}]}], "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": {"timestamp": "2026-05-04T19:47:42.668064Z", "id": "CVE-2026-37459", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-04T19:48:06.779Z"}}]}, "dataVersion": "5.2"}

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{"bugzilla": {"description": "frr: denial of service via crafted BGP UPDATE message", "id": "2466513", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2466513"}, "csaw": false, "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": "draft"}, "cwe": "CWE-191", "details": ["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)."], "mitigation": {"lang": "en:us", "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."}, "name": "CVE-2026-37459", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "frr", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "frr", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "frr", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "frr10", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-37459\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-37459\nhttps://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9"], "statement": "This vulnerability allows an unauthenticated remote attacker to cause a denial of service via a specially crafted BGP UPDATE message. Due to this reason, this issue has been rated with an important severity.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[10.0,10.6]"}}], "enrichment": {"confidence": 75.0, "confidence_source": "inferred", "scores": [{"score": 75.0, "source": "inferred"}, {"score": 81.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "frrouting", "vendor": "frrouting"}], "created": "2026-05-04T19:15:06.898612+00:00", "updated": "2026-05-09T02:15:06.482574+00:00", "vendors": ["frrouting", "frrouting$PRODUCT$frrouting"]}