{"id":"CVE-2026-124875","kind":"vulnerability","aliases":["CVE-2026-124875"],"related":[],"title":"Firefox: CSS Object Model boundary bug fixed in Firefox 160","description":"Incorrect boundary conditions in the DOM: CSS Object Model component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.","summary":"Firefox's DOM CSS Object Model component has an incorrect boundary condition, per the NVD entry. The sources do not state what an attacker can do with it.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Firefox","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browsers","firefox","other"],"not_affected_if":["fixed-version"],"how_to_check":"- Check the installed Firefox version in the browser's About page or with `firefox --version`\n- Compare it against the fixed releases: Firefox `160`, Firefox ESR `115.45`, Firefox ESR `153.7`","fix":"- Firefox `160`\n- Firefox ESR `115.45`\n- Firefox ESR `153.7`","status":"open","published_at":"2026-11-10T14:17:20+00:00","first_seen_at":"2026-11-10T14:22:14+00:00","triaged_at":"2026-11-10T14:26:19+00:00","updated_at":"2026-11-10T14:26:19+00:00","category":"other","confidence":0.4,"triage":{"at":"2026-11-10T14:26:19Z","model":"claude-haiku-5-5","output":{"fix":"- Firefox `160`\n- Firefox ESR `115.45`\n- Firefox ESR `153.7`","reach":"internet","title":"Firefox: CSS Object Model boundary bug fixed in Firefox 160","impact":"medium","summary":"Firefox's DOM CSS Object Model component has an incorrect boundary condition, per the NVD entry. The sources do not state what an attacker can do with it.","audience":"everyone","category":"other","nicknames":[],"who_cares":["firefox","browsers"],"confidence":0.4,"fix_status":"available","needs_auth":"unknown","worst_case":"unknown; the sources do not state the impact","analyst_note":"Check the Mozilla advisory for CVE-2026-124875 for the impact and trigger; the NVD entry gives only the fixed versions.","how_to_check":"- Check the installed Firefox version in the browser's About page or with `firefox --version`\n- Compare it against the fixed releases: Firefox `160`, Firefox ESR `115.45`, Firefox ESR `153.7`","plain_action":"Update Firefox to version 160, or ESR 115.45 or 153.7 if you use the ESR channel: Menu > Settings > General > Firefox Updates.","product_name":"Firefox","needs_analyst":true,"not_affected_if":["fixed-version"],"who_is_affected":"Anyone running Firefox builds older than the fixed releases. The sources do not describe a specific trigger, so whether browsing a malicious page is enough is unknown.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000741,"input_tokens":4502,"output_tokens":582,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-124875':13A,16A '-2026':12A,15A '115.45':63C '153.7':67C '160':10A,60C 'attack':43B 'boundari':5A,30B,45C 'browser':18B 'bug':6A 'compon':26B,53C 'condit':31B,46C 'css':2A,23B,50C 'cve':11A,14A 'dom':22B,49C 'entri':35B 'esr':62C,66C 'firefox':1A,9A,17A,19B,20B,59C,61C,65C 'fix':7A,57C 'incorrect':29B,44C 'model':4A,25B,52C 'nvd':34B 'object':3A,24B,51C 'per':32B 'sourc':37B 'state':40B 'vulner':55C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Firefox builds older than the fixed releases. The sources do not describe a specific trigger, so whether browsing a malicious page is enough is unknown.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Firefox to version 160, or ESR 115.45 or 153.7 if you use the ESR channel: Menu > Settings > General > Firefox Updates.","pkeys":["firefox"],"ptokens":["firefox"],"labels":["browsers","firefox","other","unknown","vendor"],"campaign_type":null,"search_a":"'-124875':13A,16A '-2026':12A,15A '160':10A 'boundari':5A 'bug':6A 'css':2A 'cve':11A,14A 'firefox':1A,9A,17A 'fix':7A 'model':4A 'object':3A","search_b":"'attack':43B 'boundari':30B 'browser':18B 'compon':26B 'condit':31B 'css':23B 'dom':22B 'entri':35B 'firefox':19B,20B 'incorrect':29B 'model':25B 'nvd':34B 'object':24B 'per':32B 'sourc':37B 'state':40B","search_c":"'115.45':63C '153.7':67C '160':60C 'boundari':45C 'compon':53C 'condit':46C 'css':50C 'dom':49C 'esr':62C,66C 'firefox':59C,61C,65C 'fix':57C 'incorrect':44C 'model':52C 'object':51C 'vulner':55C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T14:17:20+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-124875","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124875","severity":null,"published_at":"2026-11-10T14:17:20+00:00","modified_at":"2026-11-10T14:17:20+00:00","first_seen_at":"2026-11-10T14:22:14+00:00","fetched_at":"2026-11-10T14:22:14+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}