{"id":"CVE-2026-3609","aliases":["EUVD-2026-29110","GHSA-4gcg-jv45-v47x"],"status":"published","title":"XIGNCODE3 xhunter1.sys kernel driver contains a Privilege Escalation Vulnerability","description":"Wellbia's XIGNCODE3 xhunter1.sys kernel driver, version 10.0.10011.16384 through 2023.12.7.78, privilege escalation vulnerability provides access to the IRP_MJ_WRITE command interface, which allows any user process to request a PROCESS_ALL_ACCESS.\r\n\r\nNote: KVE 2023-5589 (https://krcert.or.kr) was initially issued for version 10.0.10011.16384, but the vulnerability was not fully remediated and remains in version 2023.12.7.78.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00232,"percentile":0.14111,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2026-05-11T16:25:24Z","modified":"2026-10-26T00:10:00Z","exploits":[{"source":"pocgithub","id":"BlackSnufkin/BYOVD","title":"BlackSnufkin/BYOVD","date":"2023-12-05","url":"https://github.com/BlackSnufkin/BYOVD"},{"source":"pocgithub","id":"BlackSnufkin/CredsHunter","title":"BlackSnufkin/CredsHunter","date":"2026-05-12","url":"https://github.com/BlackSnufkin/CredsHunter"}],"products":[{"vendor":"wellbia","product":"xigncode3"}],"references":[{"url":"https://crcert.or.kr","tags":["Broken Link"]},{"url":"https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://blacksnufkin.github.io/posts/Hunting-the-Hunter/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3609"},{"url":"https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609"},{"url":"https://blacksnufkin.github.io/posts/Hunting-the-Hunter"},{"url":"https://github.com/advisories/GHSA-4gcg-jv45-v47x"}],"sources":{"cve":[{"id":"CVE-2026-3609","title":"XIGNCODE3 xhunter1.sys kernel driver contains a Privilege Escalation Vulnerability","description":"Wellbia's XIGNCODE3 xhunter1.sys kernel driver, version 10.0.10011.16384 through 2023.12.7.78, privilege escalation vulnerability provides access to the IRP_MJ_WRITE command interface, which allows any user process to request a PROCESS_ALL_ACCESS.\r\n\r\nNote: KVE 2023-5589 (https://krcert.or.kr) was initially issued for version 10.0.10011.16384, but the vulnerability was not fully remediated and remains in version 2023.12.7.78.","status":"published","published":"2026-05-11T16:25:24.769Z","modified":"2026-08-05T15:57:56.121Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"adp"}],"updated_at":"2026-11-02T13:49:09.229322Z"}],"euvd":[{"id":"EUVD-2026-29110","description":"Wellbia's XIGNCODE3 xhunter1.sys kernel driver, version 10.0.10011.16384 through 2023.12.7.78, privilege escalation vulnerability provides access to the IRP_MJ_WRITE command interface, which allows any user process to request a PROCESS_ALL_ACCESS.\r\n\r\nNote: KVE 2023-5589 (https://krcert.or.kr) was initially issued for version 10.0.10011.16384, but the vulnerability was not fully remediated and remains in version 2023.12.7.78.","status":"published","published":"2026-05-11T16:25:24Z","modified":"2026-08-05T15:57:56Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T18:02:09.87889Z"}],"ghsa":[{"id":"GHSA-4gcg-jv45-v47x","title":"Wellbia's XIGNCODE3 xhunter1.sys kernel driver Privilege Escalation Vulnerability provides access...","description":"Wellbia's XIGNCODE3 xhunter1.sys kernel driver Privilege Escalation Vulnerability provides access to IRP_MJ_REITS command interface, which allows any user process to request a PROCESS_ALL_ACCESS.\nCross reference to KVE 2023-5589 (https://krcert.or.kr)","status":"published","published":"2026-05-11T18:31:45Z","modified":"2026-08-05T18:31:20Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:10:07.328501Z"}],"nvd":[{"id":"CVE-2026-3609","description":"Wellbia's XIGNCODE3 xhunter1.sys kernel driver, version 10.0.10011.16384 through 2023.12.7.78, privilege escalation vulnerability provides access to the IRP_MJ_WRITE command interface, which allows any user process to request a PROCESS_ALL_ACCESS.\r\n\r\nNote: KVE 2023-5589 (https://krcert.or.kr) was initially issued for version 10.0.10011.16384, but the vulnerability was not fully remediated and remains in version 2023.12.7.78.","status":"published","published":"2026-05-11T18:16:33.56Z","modified":"2026-10-26T00:10:00.15Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"}],"updated_at":"2026-11-02T14:12:18.239974Z"}]}}