{"cve":{"cve_id":"CVE-2015-1701","is_kev":true,"kev_date_added":"2022-03-03","kev_vendor_project":"Microsoft","kev_product":"Win32k","kev_vulnerability_name":"Microsoft Win32k Privilege Escalation Vulnerability","kev_short_description":"An unspecified vulnerability exists in the Win32k.sys kernel-mode driver in Microsoft Windows Server that allows a local attacker to execute arbitrary code with elevated privileges.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-03-24","kev_known_ransomware":true,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2015-1701","kev_cwes":["CWE-264"],"epss_score":0.562,"epss_percentile":0.98973,"epss_as_of":"2026-08-26","description":"Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka \"Win32k Elevation of Privilege Vulnerability.\"","published_at":"2015-04-21T10:00:00Z","last_modified_at":"2026-08-14T05:16:52.667000Z","cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":null,"nvd_references":["http://twitter.com/symantec/statuses/590208710527549440","https://www.exploit-db.com/exploits/37049/","http://www.securityfocus.com/bid/74245","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-051","https://www.exploit-db.com/exploits/37367/","https://www.fireeye.com/blog/threat-research/2015/04/probable_apt28_useo.html","http://www.securitytracker.com/id/1032155","http://seclists.org/fulldisclosure/2020/May/34"],"vuln_status":"Analyzed","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-08-15T18:36:47.694503Z"},"effective_severity":"HIGH","badges":["kev","ransomware","exploit","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"windows-2003-server","product_name":"windows_2003_server","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:microsoft:windows_2003_server:-:sp2:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"windows-2003-server","product_name":"windows_2003_server","version_start":"r2","version_start_inclusive":true,"version_end":"r2","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:microsoft:windows_2003_server:r2:sp2:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"windows-7","product_name":"Windows 7","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"windows-server-2008","product_name":"windows_server_2008","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*"},{"vendor_slug":"microsoft","vendor_name":"microsoft","product_slug":"windows-vista","product_name":"windows_vista","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*"}],"exploit_refs":[{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/37367","title":"Microsoft Windows - ClientCopyImage Win32k (MS15-051) (Metasploit)","author":"Metasploit","disclosed_at":"2015-06-24"},{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/37049","title":"Microsoft Windows - Local Privilege Escalation (MS15-051)","author":"hfiref0x","disclosed_at":"2015-05-18"}],"news":[],"references":[{"url":"http://twitter.com/symantec/statuses/590208710527549440","source_type":"MISC","tags":[]},{"url":"https://www.exploit-db.com/exploits/37049/","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://www.securityfocus.com/bid/74245","source_type":"MISC","tags":[]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-051","source_type":"MISC","tags":[]},{"url":"https://www.exploit-db.com/exploits/37367/","source_type":"EXPLOIT","tags":["exploit"]},{"url":"https://www.fireeye.com/blog/threat-research/2015/04/probable_apt28_useo.html","source_type":"MISC","tags":[]},{"url":"http://www.securitytracker.com/id/1032155","source_type":"MISC","tags":[]},{"url":"http://seclists.org/fulldisclosure/2020/May/34","source_type":"MAILING_LIST","tags":["mailing-list"]}],"timeline":[{"type":"published","at":"2015-04-21T10:00:00Z","label":"CVE published","source":null},{"type":"exploit_known","at":"2015-05-18T00:00:00Z","label":"Public exploit available","source":"exploit-db"},{"type":"cisa_reported","at":"2022-03-03T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"ssvc_changed","at":"2026-06-24T00:31:01.449015Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:01.449015Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:01.449015Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:01.449015Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:01.449015Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:01.449015Z","label":"CVSS score revised","source":"vulnrichment"}]}