{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-10109: IBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-10109","status":"final","version":"1","initial_release_date":"2026-06-30T20:02:13.026Z","current_release_date":"2026-06-30T20:02:13.026Z","revision_history":[{"date":"2026-06-30T20:02:13.026Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-10109 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-10109"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-10109"},{"category":"external","summary":"ibm.com","url":"https://www.ibm.com/support/pages/node/7277424"}]},"product_tree":{"branches":[{"category":"vendor","name":"IBM","branches":[{"category":"product_name","name":"Db2","branches":[{"category":"product_version_range","name":">=11.5.0 <=11.5.9","product":{"name":"IBM Db2 >=11.5.0 <=11.5.9","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:ibm:db2:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=12.1.0 <=12.1.4","product":{"name":"IBM Db2 >=12.1.0 <=12.1.4","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:ibm:db2:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-10109","title":"IBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling","notes":[{"category":"description","text":"IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1","CSAFPID-2"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1","CSAFPID-2"]}]}]}