{"id":"CVE-1999-1094","aliases":["EUVD-1999-1075","GHSA-wcrg-6ghq-6288"],"status":"published","title":"Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute...","description":"Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute arbitrary commands via a long URL with the \"mk:\" protocol, aka the \"MK Overrun security issue.\"","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.18414,"percentile":0.97258,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"1999-12-31T05:00:00Z","modified":"2026-06-16T21:49:42Z","products":[{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/917","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://marc.info/?l=bugtraq\u0026m=88480839506155\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://support.microsoft.com/support/kb/articles/q176/6/97.asp","tags":["vendor-advisory","x_refsource_MSKB","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-1094"},{"url":"https://github.com/advisories/GHSA-wcrg-6ghq-6288"}],"sources":{"cve":[{"id":"CVE-1999-1094","description":"Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute arbitrary commands via a long URL with the \"mk:\" protocol, aka the \"MK Overrun security issue.\"","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:02:53.45Z","updated_at":"2026-11-02T14:33:53.295018Z"}],"euvd":[{"id":"EUVD-1999-1075","description":"Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute arbitrary commands via a long URL with the \"mk:\" protocol, aka the \"MK Overrun security issue.\"","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:02:53Z","updated_at":"2026-11-03T03:50:44.304075Z"}],"ghsa":[{"id":"GHSA-wcrg-6ghq-6288","title":"Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute...","description":"Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute arbitrary commands via a long URL with the \"mk:\" protocol, aka the \"MK Overrun security issue.\"","status":"published","published":"2022-04-30T18:11:48Z","modified":"2023-01-30T05:04:15Z","updated_at":"2026-11-02T14:47:00.339893Z"}],"nvd":[{"id":"CVE-1999-1094","description":"Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute arbitrary commands via a long URL with the \"mk:\" protocol, aka the \"MK Overrun security issue.\"","status":"published","published":"1999-12-31T05:00:00Z","modified":"2026-06-16T21:49:42.553Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T13:58:51.654586Z"}]}}