{"schema":"threatline.record/2","record":{"id":"CVE-2016-7255","aliases":[],"summary":"Microsoft Win32k Privilege Escalation Vulnerability","details":"Microsoft Win32k kernel-mode driver fails to properly handle objects in memory which allows for privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.","categories":["Operating systems"],"product":"Win32k","vendor":"Microsoft","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2016-7255","source_modified_at":"2026-09-10T03:55:16.226Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}],"defaultStatus":null}],"fixed_versions":[],"cvss":7.8,"severity":"High","kev":{"listed":true,"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Known"},"epss":{"probability":0.80968,"percentile":0.99633,"score_date":"2026-10-23"},"published_at":"2016-11-10T06:16:00.000Z","modified_at":"2026-09-10T03:55:16.226Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2016-7255","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-09-10T03:55:16.226Z"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/40745","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2016-11-09"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/40823","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2016-11-24"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/41015","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2017-01-08"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2016-7255","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Exploit-DB","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7255","source":"CISA KEV"},{"source":"CVE List","url":"https://github.com/mwrlabs/CVE-2016-7255","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.exploit-db.com/exploits/40823/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"source":"CVE List","url":"https://www.exploit-db.com/exploits/41015/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"source":"CVE List","url":"https://securingtomorrow.mcafee.com/mcafee-labs/digging-windows-kernel-privilege-escalation-vulnerability-cve-2016-7255/","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.exploit-db.com/exploits/40745/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"source":"CVE List","url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-135","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"source":"CVE List","url":"https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7255","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2021-03-05T00:00:00+00:00"},"exploits":[{"source":"Exploit-DB","kind":"Dos exploit","name":"Microsoft Windows Kernel - 'win32k' Denial of Service (MS16-135)","url":"https://www.exploit-db.com/exploits/40745","date":"2016-11-09","added":"2016-11-09","verified":false},{"source":"Exploit-DB","kind":"Local exploit","name":"Microsoft Windows Kernel - 'win32k.sys NtSetWindowLongPtr' Local Privilege Escalation (MS16-135) (1)","url":"https://www.exploit-db.com/exploits/40823","date":"2016-11-24","added":"2016-11-24","verified":false},{"source":"Exploit-DB","kind":"Local exploit","name":"Microsoft Windows Kernel - 'win32k.sys NtSetWindowLongPtr' Local Privilege Escalation (MS16-135) (2)","url":"https://www.exploit-db.com/exploits/41015","date":"2017-01-08","added":"2017-01-11","verified":false}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-10T03:55:16.226Z","content_hash":"42b9e82a3a20e976468f97d431f379e56e569fa2f59fc6f26c3eebac87c6243f"}}