brary of X Windowing System allows local users to execute commands with root privileges. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0040","sourceIdentifier":"cve@mitre.org","published":"1997-05-01T04:00:00.000","lastModified":"2026-06-16T21:47:25.987","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Buffer overflow in Xt library of X Windowing System allows local users to execute commands with root privileges."}],"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:L/AC:L/Au:N/C:C/I:C/A:C","baseScore":7.2,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":3.9,"impactScore":10.0,"acInsufInfo":false,"obtainAllPrivilege":true,"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:sgi:irix:4.0:*:*:*:*:*:*:*","matchCriteriaId":"536CB843-5FF6-4BC1-A6DA-92A8CB69D6D4"},{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:5.0:*:*:*:*:*:*:*","matchCriteriaId":"D792E16B-A1AB-4BCE-9E6E-88C17D4F57CA"},{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:5.3:*:*:*:*:*:*:*","matchCriteriaId":"26144F94-63FD-4907-B548-09B68C2FC9B3"},{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:6.0:*:*:*:*:*:*:*","matchCriteriaId":"26309EFA-0991-46B6-9818-F0FBB902D5F5"},{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:6.1:*:*:*:*:*:*:*","matchCriteriaId":"966C1A13-8007-408D-96BE-0DA3BB6CA401"},{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:6.2:*:*:*:*:*:*:*","matchCriteriaId":"0ECE564D-B4BB-4C05-88CC-CDC3F8E4E366"},{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:6.3:*:*:*:*:*:*:*","matchCriteriaId":"B2D59247-56FA-46B4-BB51-2DAE71AFC145"},{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:6.4:*:*:*:*:*:*:*","matchCriteriaId":"15BE08F8-5F3F-45DB-BFE0-1F6F2F57A4D4"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:bsdi:bsd_os:2.0:*:*:*:*:*:*:*","matchCriteriaId":"DD254562-D74A-4D7C-B846-E242D785B830"},{"vulnerable":true,"criteria":"cpe:2.3:o:bsdi:bsd_os:2.0.1:*:*:*:*:*:*:*","matchCriteriaId":"BBFBCFEE-C24C-4D38-83F9-810E05D27901"},{"vulnerable":true,"criteria":"cpe:2.3:o:bsdi:bsd_os:2.1:*:*:*:*:*:*:*","matchCriteriaId":"766851E2-134A-4A89-931B-6F1753525684"},{"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:*:*:*:*:*:*:*","matchCriteriaId":"F1F098C1-D09E-49B4-9B51-E84B6C4EA6CD"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:9.00:*:*:*:*:*:*:*","matchCriteriaId":"6E436D06-FA3A-43F6-AF84-2E9C2F42E3FF"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:9.01:*:*:*:*:*:*:*","matchCriteriaId":"DCB1B6DC-4FF9-40DC-BAD5-91A04E79981E"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:9.10:*:*:*:*:*:*:*","matchCriteriaId":"C54F7F74-7DD7-431E-AE75-1D1199D63032"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.00:*:*:*:*:*:*:*","matchCriteriaId":"3187435B-C052-4DBA-AA79-F8AC0287EE14"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.01:*:*:*:*:*:*:*","matchCriteriaId":"53BBFE9A-6846-4625-91AC-47AA0BC0933A"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.08:*:*:*:*:*:*:*","matchCriteriaId":"2170549C-80D2-4FF8-AC07-BD4124125B02"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.09:*:*:*:*:*:*:*","matchCriteriaId":"066D4E93-366F-42D4-B27D-8AF981F5F2AD"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.10:*:*:*:*:*:*:*","matchCriteriaId":"38BFA923-7D80-4F01-AF9F-6F13209948AC"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.16:*:*:*:*:*:*:*","matchCriteriaId":"38E41C26-A086-4C9C-83D8-CB910F4B67F1"},{"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:10.24:*:*:*:*:*:*:*","matchCriteriaId":"4259A901-A1CF-44EE-80C4-2031D3FCADC3"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.30:*:*:*:*:*:*:*","matchCriteriaId":"09070FE3-EF6B-41F6-89D8-3C9E31F3A6BF"},{"vulnerable":true,"criteria":"cpe:2.3:o:hp:hp-ux:10.34:*:*:*:*:*:*:*","matchCriteriaId":"CFD50216-90AC-480E-A11C-E88E64C6D84A"},{"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:4.1:*:*:*:*:*:*:*","matchCriteriaId":"FBF25306-E7C2-4F9A-A809-4779A6C0A079"},{"vulnerable":true,"criteria":"cpe:2.3:o:ibm:aix:4.2:*:*:*:*:*:*:*","matchCriteriaId":"05F20EC2-ADE6-4F96-A2E7-1DCCA819D657"},{"vulnerable":true,"criteria":"cpe:2.3:o:nec:asl_ux_4800:64:*:*:*:*:*:*:*","matchCriteriaId":"BF1C22CE-FF69-44CF-82C3-EBFDA9E7EC0E"},{"vulnerable":true,"criteria":"cpe:2.3:o:nec:ews-ux_v:4.2:*:*:*:*:*:*:*","matchCriteriaId":"EFDDBA47-A0E3-4EB2-868A-A9B998B0154E"},{"vulnerable":true,"criteria":"cpe:2.3:o:nec:ews-ux_v:4.2mp:*:*:*:*:*:*:*",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