{"id":"CVE-2026-3609","state":"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.","publishedAt":"2026-05-11T16:25:24.769Z","updatedAt":"2026-08-05T15:57:56.121Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","source":"CISA-ADP"},"assigner":"certcc","products":["Wellbia XIGNCODE3"],"affected":[{"vendor":"Wellbia","product":"XIGNCODE3","versions":[{"version":"10.0.10011.16384","status":"affected","lessThanOrEqual":"2023.12.7.78","versionType":"custom"}]}],"references":["https://crcert.or.kr","https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/","https://blacksnufkin.github.io/posts/Hunting-the-Hunter/"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3609.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3609","state":"PUBLISHED","datePublished":"2026-05-11T16:25:24.769Z","dateUpdated":"2026-08-05T15:57:56.121Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-03-05T17:54:52.283Z"},"containers":{"cna":{"title":"XIGNCODE3 xhunter1.sys kernel driver contains a Privilege Escalation Vulnerability","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Wellbia","product":"XIGNCODE3","versions":[{"version":"10.0.10011.16384","status":"affected","lessThanOrEqual":"2023.12.7.78","versionType":"custom"}]}],"references":[{"url":"https://crcert.or.kr"},{"url":"https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/"},{"url":"https://blacksnufkin.github.io/posts/Hunting-the-Hunter/"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-269 Improper Privilege Management"}]},{"descriptions":[{"lang":"en","description":"CWE-732 Incorrect Permission Assignment for Critical Resource"}]},{"descriptions":[{"lang":"en","description":"CWE-284 Improper Access Control"}]},{"descriptions":[{"lang":"en","description":"CWE-266 Incorrect Privilege Assignment"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-08-05T15:57:56.121Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.43","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-3609"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/","tags":["exploit"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"LOW","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T12:35:38.266419Z","id":"CVE-2026-3609","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-13T12:35:57.998Z"}}]}}}