{"cve":{"cve_id":"CVE-2023-3389","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00731,"epss_percentile":0.49495,"epss_as_of":"2026-06-23","description":"A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\n\nRacing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.\n\nWe recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).","published_at":"2023-06-28T19:33:55.097000Z","last_modified_at":null,"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":"none","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-416"],"nvd_references":["https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663","https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04","https://kernel.dance/0e388fce7aec40992eadee654193cad345d62663","https://kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04","https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59","https://kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59","https://security.netapp.com/advisory/ntap-20230731-0001/","https://www.debian.org/security/2023/dsa-5480","http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html","https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"],"vuln_status":null,"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":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-29T01:35:39.862342Z"},"effective_severity":"HIGH","badges":[],"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":"linux","vendor_name":"Linux","product_slug":"kernel","product_name":"Kernel","version_start":"5.13","version_start_inclusive":true,"version_end":"6.4","version_end_inclusive":false,"cpe23_uri":"cve5:linux:kernel:5.13:6.4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"kernel","product_name":"Kernel","version_start":"5.10.162","version_start_inclusive":true,"version_end":"5.10.185","version_end_inclusive":false,"cpe23_uri":"cve5:linux:kernel:5.10.162:5.10.185"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663","source_type":"MISC","tags":["patch"]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04","source_type":"MISC","tags":["patch"]},{"url":"https://kernel.dance/0e388fce7aec40992eadee654193cad345d62663","source_type":"MISC","tags":[]},{"url":"https://kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59","source_type":"MISC","tags":["patch"]},{"url":"https://kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59","source_type":"MISC","tags":[]},{"url":"https://security.netapp.com/advisory/ntap-20230731-0001/","source_type":"MISC","tags":[]},{"url":"https://www.debian.org/security/2023/dsa-5480","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html","source_type":"EXPLOIT","tags":["exploit","patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","source_type":"MAILING_LIST","tags":["mailing-list"]}],"timeline":[{"type":"published","at":"2023-06-28T19:33:55.097000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:29:32.763511Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:29:32.763511Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:29:32.763511Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:35:39.862342Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:35:39.862342Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:35:39.862342Z","label":"SSVC decision revised","source":"vulnrichment"}]}