{"cve":{"cve_id":"CVE-2026-42250","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":0.00126,"epss_percentile":0.0263,"epss_as_of":"2026-06-23","description":"bzip2 contains an off‑by‑one error in the bzip2recover utility. When processing a specially crafted file, the application performs an out‑of‑bounds write to a global buffer, resulting in memory corruption and a crash (denial of service).\n\nThis issue was fixed in bzip2 patch 35d122a3df8b0cc4082a4d89fdc6ee99f375fe67","published_at":"2026-05-28T13:15:19.660000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":4.8,"cvss_v4_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","cvss_v4_severity":"MEDIUM","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-787"],"nvd_references":["https://cert.pl/en/posts/2026/05/CVE-2026-42250/","https://sourceware.org/bzip2/","https://inbox.sourceware.org/bzip2-devel/20260528145407.293768-1-mark@klomp.org/","https://sourceware.org/cgit/bzip2/commit/?id=35d122a3df8b0cc4082a4d89fdc6ee99f375fe67"],"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":"2026-06-28T23:30:18.882139Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"P","value_label":"Passive"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"N","value_label":"None"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"N","value_label":"None"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"L","value_label":"Low"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"bzip2","vendor_name":"bzip2","product_slug":"bzip2","product_name":"bzip2","version_start":"0","version_start_inclusive":true,"version_end":"1.0.8","version_end_inclusive":true,"cpe23_uri":"cve5:bzip2:bzip2:0:1.0.8"},{"vendor_slug":"bzip2","vendor_name":"bzip2","product_slug":"bzip2","product_name":"bzip2","version_start":"35d122a3df8b0cc4082a4d89fdc6ee99f375fe67","version_start_inclusive":true,"version_end":"35d122a3df8b0cc4082a4d89fdc6ee99f375fe67","version_end_inclusive":true,"cpe23_uri":"cve5:bzip2:bzip2:35d122a3df8b0cc4082a4d89fdc6ee99f375fe67:35d122a3df8b0cc4082a4d89fdc6ee99f375fe67"}],"exploit_refs":[],"news":[],"references":[{"url":"https://cert.pl/en/posts/2026/05/CVE-2026-42250/","source_type":"MISC","tags":[]},{"url":"https://sourceware.org/bzip2/","source_type":"MISC","tags":[]},{"url":"https://inbox.sourceware.org/bzip2-devel/20260528145407.293768-1-mark@klomp.org/","source_type":"MISC","tags":[]},{"url":"https://sourceware.org/cgit/bzip2/commit/?id=35d122a3df8b0cc4082a4d89fdc6ee99f375fe67","source_type":"MISC","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-05-28T13:15:19.660000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:07.258310Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:07.258310Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:07.258310Z","label":"CVSS score revised","source":"cvelistv5"}]}