CVE-2026-7737

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{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:osrg:gobgp:*:*:*:*:*:*:*:*"], "modules": ["BMP Parser"], "product": "GoBGP", "vendor": "osrg", "versions": [{"status": "affected", "version": "4.0"}, {"status": "affected", "version": "4.1"}, {"status": "affected", "version": "4.2"}, {"status": "affected", "version": "4.3.0"}, {"status": "unaffected", "version": "4.4.0"}]}], "source": "cna@vuldb.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:osrg:gobgp:*:*:*:*:*:*:*:*", "matchCriteriaId": "05DBB6FD-F3CD-4BF0-A573-D1E87307A50F", "versionEndExcluding": "4.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in osrg GoBGP up to 4.3.0. Affected by this issue is the function BMPPeerUpNotification.ParseBody/BMPStatisticsReport.ParseBody of the file pkg/packet/bmp/bmp.go of the component BMP Parser. The manipulation leads to out-of-bounds read. The attack can be initiated remotely. Upgrading to version 4.4.0 can resolve this issue. The identifier of the patch is bc77597d42335c78464bc8e15a471d887bbdf260. Upgrading the affected component is recommended."}, {"lang": "es", "value": "Se identific\u00f3 una vulnerabilidad en osrg GoBGP hasta la versi\u00f3n 4.3.0. Afectada por este problema es la funci\u00f3n BMPPeerUpNotification.ParseBody/BMPStatisticsReport.ParseBody del archivo pkg/packet/bmp/bmp.go del componente BMP Parser. La manipulaci\u00f3n conduce a una lectura fuera de l\u00edmites. El ataque puede iniciarse remotamente. La actualizaci\u00f3n a la versi\u00f3n 4.4.0 puede resolver este problema. El identificador del parche es bc77597d42335c78464bc8e15a471d887bbdf260. La actualizaci\u00f3n del componente afectado es recomendada."}], "id": "CVE-2026-7737", "lastModified": "2026-10-26T19:10:00.163", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-7737", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-05T00:57:11.494445Z", "version": "2.0.3"}}]}, "published": "2026-05-04T07:16:01.700", "references": [{"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://github.com/osrg/gobgp/"}, {"source": "cna@vuldb.com", "tags": ["Patch"], "url": "https://github.com/osrg/gobgp/commit/bc77597d42335c78464bc8e15a471d887bbdf260"}, {"source": "cna@vuldb.com", "tags": ["Patch", "Product"], "url": "https://github.com/osrg/gobgp/releases/tag/v4.4.0"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/submit/807605"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/vuln/360912"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/vuln/360912/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-125"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{"bugzilla": {"description": "github.com/osrg/gobgp: osrg GoBGP: Denial of service via out-of-bounds read in BMP Parser", "id": "2464870", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464870"}, "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-125", "details": ["A flaw was found in osrg GoBGP. A remote attacker can exploit an out-of-bounds read vulnerability within the BMP Parser component, specifically in the `BMPPeerUpNotification.ParseBody` and `BMPStatisticsReport.ParseBody` functions. This manipulation can lead to a denial of service, making the affected system unavailable."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-7737", "public_date": "2026-05-04T05:45:12Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-7737\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-7737\nhttps://github.com/osrg/gobgp/\nhttps://github.com/osrg/gobgp/commit/bc77597d42335c78464bc8e15a471d887bbdf260\nhttps://github.com/osrg/gobgp/releases/tag/v4.4.0\nhttps://vuldb.com/submit/807605\nhttps://vuldb.com/vuln/360912\nhttps://vuldb.com/vuln/360912/cti"], "statement": "This is an Important denial of service vulnerability in osrg GoBGP. A remote attacker can trigger an out-of-bounds read within the BMP Parser by sending specially crafted BGP Monitoring Protocol messages, leading to service unavailability. The flaw's impact is significant due to its remote exploitability and direct effect on network routing stability.", "threat_severity": "Important"}

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