cast addresses are allowed, allowing for a Smurf attack that can cause a denial of service. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0513","sourceIdentifier":"cve@mitre.org","published":"1998-01-05T05:00:00.000","lastModified":"2026-06-16T21:48:33.307","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"ICMP messages to broadcast addresses are allowed, allowing for a Smurf attack that can cause a denial of service."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:digital:unix:3.2g:*:*:*:*:*:*:*","matchCriteriaId":"BD4B2280-5114-4CBD-9B06-221BD9CE4229"},{"vulnerable":true,"criteria":"cpe:2.3:o:digital:unix:4.0:*:*:*:*:*:*:*","matchCriteriaId":"E1E08495-C0C5-40A9-A8FF-834F5F6083B3"},{"vulnerable":true,"criteria":"cpe:2.3:o:digital:unix:4.0a:*:*:*:*:*:*:*","matchCriteriaId":"781D13E2-35BB-4D58-A68F-86401D08D438"},{"vulnerable":true,"criteria":"cpe:2.3:o:digital:unix:4.0b:*:*:*:*:*:*:*","matchCriteriaId":"07476CFD-859F-4AD7-8514-130E7A86BAE5"},{"vulnerable":true,"criteria":"cpe:2.3:o:digital:unix:4.0c:*:*:*:*:*:*:*","matchCriteriaId":"A5F097D7-CD52-44FC-851C-7DB42E57DCB8"},{"vulnerable":true,"criteria":"cpe:2.3:o:digital:unix:4.0d:*:*:*:*:*:*:*","matchCriteriaId":"8C250283-4343-4569-A6EA-988FB7319AA7"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:1.1.5.1:*:*:*:*:*:*:*","matchCriteriaId":"C496B665-70DA-4B98-A5D1-E2935C0CE840"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.0.5:*:*:*:*:*:*:*","matchCriteriaId":"34797660-41F5-4358-B70F-2A40DE48F182"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.1.0:*:*:*:*:*:*:*","matchCriteriaId":"27C9E23D-AB82-4AE1-873E-C5493BB96AA1"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.1.5:*:*:*:*:*:*:*","matchCriteriaId":"4054D69F-596F-4EB4-BE9A-E2478343F55A"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.1.6:*:*:*:*:*:*:*","matchCriteriaId":"CA26ABBE-9973-45FA-9E9B-82170B751219"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.1.7.1:*:*:*:*:*:*:*","matchCriteriaId":"BF8F9B2F-E898-4F87-A245-32A41748587B"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.2.2:*:*:*:*:*:*:*","matchCriteriaId":"EBDDEC3F-52EB-4E1E-84C4-B472600059EC"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.2.3:*:*:*:*:*:*:*","matchCriteriaId":"B58E02AE-38B4-466E-BF73-2F0B80AF7BA5"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:2.2.4:*:*:*:*:*:*:*","matchCriteriaId":"3928D5CF-6FC0-434C-8A80-ABDBF346C2C9"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.20:*:*:*:*:*:*:*","matchCriteriaId":"EDE44C49-172C-4899-8CC8-29AA99A7CD2F"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:11.00:*:*:*:*:*:*:*","matchCriteriaId":"771931F7-9180-4EBD-8627-E1CF17D24647"},{"vulnerable":true,"criteria":"cpe:2.3:o:ibm:aix:3.1:*:*:*:*:*:*:*","matchCriteriaId":"CE321D29-3312-4F22-B930-1B119DA4BD27"},{"vulnerable":true,"criteria":"cpe:2.3:o:ibm:aix:3.2:*:*:*:*:*:*:*","matchCriteriaId":"DD5E0678-45C7-492A-963C-897494D6878F"},{"vulnerable":true,"criteria":"cpe:2.3:o:ibm:aix:3.2.4:*:*:*:*:*:*:*","matchCriteriaId":"E55C28A7-CD21-47CD-AA50-E8B2D89A18E8"},{"vulnerable":true,"criteria":"cpe:2.3:o:ibm:aix:3.2.5:*:*:*:*:*:*:*","matchCriteriaId":"D3C00FC9-AD97-4226-A0EA-7DB14AA592DE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:2.0:*:*:*:*:*:*:*","matchCriteriaId":"96A6EE7E-C79C-4B25-AFF0-C6638CB3C99A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:2.1:*:*:*:*:*:*:*","matchCriteriaId":"5E4A2912-12AC-4DF1-8023-A0B7DBE9A866"},{"vulnerable":true,"criteria":"cpe:2.3:o:netbsd:netbsd:1.2:*:*:*:*:*:*:*","matchCriteriaId":"55DD3C82-0B7D-4B25-B603-AD6C6D59239A"},{"vulnerable":true,"criteria":"cpe:2.3:o:sun:solaris:2.4:*:x86:*:*:*:*:*","matchCriteriaId":"1F881110-7B54-49DA-B23A-710273430C44"},{"vulnerable":true,"criteria":"cpe:2.3:o:sun:solaris:2.5:*:x86:*:*:*:*:*","matchCriteriaId":"200D8CB2-0D52-40A8-9CD9-6E4513605201"},{"vulnerable":true,"criteria":"cpe:2.3:o:sun:solaris:2.5.1:*:ppc:*:*:*:*:*","matchCriteriaId":"54AF87E4-52A4-44CA-B48E-A5BB139E6410"},{"vulnerable":true,"criteria":"cpe:2.3:o:sun:solaris:2.5.1:*:x86:*:*:*:*:*","matchCriteriaId":"F66BAF35-A8B9-4E95-B270-444206FDD35B"},{"vulnerable":true,"criteria":"cpe:2.3:o:sun:solaris:2.6:*:*:*:*:*:*:*","matchCriteriaId":"34EBF074-78C8-41AF-88F1-DA6726E56F8B"},{"vulnerable":true,"criteria":"cpe:2.3:o:sun:sunos:-:*:*:*:*:*:*:*","matchCriteriaId":"369207B4-96FA-4324-9445-98FAE8ECF5DB"},{"vulnerable":true,"criteria":"cpe:2.3:o:sun:sunos:5.4:*:*:*:*:*:*:*","matchCriteriaId":"7AAC8954-74A8-4FE3-ABE7-57DA041D9D8F"},{"vulnerable":true,"criteria"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