{"cve":{"cve_id":"CVE-2026-53020","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":null,"epss_percentile":null,"epss_as_of":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\num: Fix potential race condition in TLB sync\n\nDuring the TLB sync, we need to traverse and modify the page table,\nso we should hold the page table lock. Since full SMP support for\nthreads within the same process is still missing, let's disable the\nsplit page table lock for simplicity.","published_at":"2026-06-24T16:29:29.796000Z","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":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/f21c343ec7419377bff89ab11146c03ae117036f","https://git.kernel.org/stable/c/102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3"],"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":"2026-06-28T17:55:28.590503Z","updated_at":"2026-06-28T23:30:49.890169Z"},"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":"linux","product_name":"Linux","version_start":"1e4ee5135d814fe4785890790cec81c3132888fb","version_start_inclusive":true,"version_end":"f21c343ec7419377bff89ab11146c03ae117036f","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1e4ee5135d814fe4785890790cec81c3132888fb:f21c343ec7419377bff89ab11146c03ae117036f"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1e4ee5135d814fe4785890790cec81c3132888fb","version_start_inclusive":true,"version_end":"102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1e4ee5135d814fe4785890790cec81c3132888fb:102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.19","version_start_inclusive":true,"version_end":"6.19","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.19:6.19"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.19","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.19"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.10","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.10:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/f21c343ec7419377bff89ab11146c03ae117036f","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:29:29.796000Z","label":"CVE published","source":null}]}