{"id":"CVE-2015-1671","aliases":["EUVD-2015-1801","GHSA-gr4p-px5x-x8jm"],"status":"published","title":"The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5,...","description":"The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010 SP2; Live Meeting 2007 Console; Lync 2010; Lync 2010 Attendee; Lync 2013 SP1; Lync Basic 2013 SP1; Silverlight 5 before 5.1.40416.00; and Silverlight 5 Developer Runtime before 5.1.40416.00, allows remote attackers to execute arbitrary code via a crafted TrueType font, aka \"TrueType Font Parsing Vulnerability.\"","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.48832,"percentile":0.98884,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-19"],"published":"2015-05-13T10:00:00Z","modified":"2026-06-17T00:22:47Z","kev":{"date_added":"2022-05-25","due_date":"2022-06-15","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-05-25"},{"source":"kev","since":"2022-05-25"}],"products":[{"vendor":"microsoft","product":".net_framework"},{"vendor":"microsoft","product":"live_meeting"},{"vendor":"microsoft","product":"lync"},{"vendor":"microsoft","product":"silverlight"},{"vendor":"microsoft","product":"windows"}],"references":[{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-044","tags":["vendor-advisory","x_refsource_MS","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1032281","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/74490","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1671","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-1671"},{"url":"https://github.com/advisories/GHSA-gr4p-px5x-x8jm"}],"sources":{"cve":[{"id":"CVE-2015-1671","description":"The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010 SP2; Live Meeting 2007 Console; Lync 2010; Lync 2010 Attendee; Lync 2013 SP1; Lync Basic 2013 SP1; Silverlight 5 before 5.1.40416.00; and Silverlight 5 Developer Runtime before 5.1.40416.00, allows remote attackers to execute arbitrary code via a crafted TrueType font, aka \"TrueType Font Parsing Vulnerability.\"","status":"published","published":"2015-05-13T10:00:00Z","modified":"2025-10-21T23:56:01.311Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:35:44.404481Z"}],"euvd":[{"id":"EUVD-2015-1801","description":"The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010 SP2; Live Meeting 2007 Console; Lync 2010; Lync 2010 Attendee; Lync 2013 SP1; Lync Basic 2013 SP1; Silverlight 5 before 5.1.40416.00; and Silverlight 5 Developer Runtime before 5.1.40416.00, allows remote attackers to execute arbitrary code via a crafted TrueType font, aka \"TrueType Font Parsing Vulnerability.\"","status":"published","published":"2015-05-13T10:00:00Z","modified":"2025-10-21T23:56:01Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2022-05-25","updated_at":"2026-11-02T19:49:39.684828Z"}],"ghsa":[{"id":"GHSA-gr4p-px5x-x8jm","title":"The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5,...","description":"The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010 SP2; Live Meeting 2007 Console; Lync 2010; Lync 2010 Attendee; Lync 2013 SP1; Lync Basic 2013 SP1; Silverlight 5 before 5.1.40416.00; and Silverlight 5 Developer Runtime before 5.1.40416.00, allows remote attackers to execute arbitrary code via a crafted TrueType font, aka \"TrueType Font Parsing Vulnerability.\"","status":"published","published":"2022-05-14T02:29:11Z","modified":"2025-10-22T00:31:09Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:04:03.556367Z"}],"kev":[{"id":"CVE-2015-1671","title":"Microsoft Windows Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists when components of Windows, .NET Framework, Office, Lync, and Silverlight fail to properly handle TrueType fonts.","cwes":["CWE-19"],"kev":{"date_added":"2022-05-25","due_date":"2022-06-15","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2015-1671","description":"The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010 SP2; Live Meeting 2007 Console; Lync 2010; Lync 2010 Attendee; Lync 2013 SP1; Lync Basic 2013 SP1; Silverlight 5 before 5.1.40416.00; and Silverlight 5 Developer Runtime before 5.1.40416.00, allows remote attackers to execute arbitrary code via a crafted TrueType font, aka \"TrueType Font Parsing Vulnerability.\"","status":"published","published":"2015-05-13T10:59:03.91Z","modified":"2026-06-17T00:22:47.647Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:03:04.906059Z"}]}}