{"id":"CVE-2026-124873","kind":"vulnerability","aliases":["CVE-2026-124873"],"related":[],"title":"Firefox: invalid pointer in DOM Editor component, fixed in 160","description":"Invalid pointer in the DOM: Editor component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.","summary":"Firefox has an invalid pointer bug in its DOM Editor component. The sources do not say what an attacker can do with it beyond the memory error itself.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","firefox","other"],"not_affected_if":["firefox-160-or-later"],"how_to_check":"- Check your Firefox version in Help > About Firefox; the sources name Firefox 160 and Firefox ESR 153.7 as the fixed releases.","fix":"- `Firefox 160`\n- `Firefox ESR 153.7`","status":"open","published_at":"2026-11-10T14:17:19+00:00","first_seen_at":"2026-11-10T14:22:14+00:00","triaged_at":"2026-11-10T14:26:22+00:00","updated_at":"2026-11-10T14:26:22+00:00","category":"other","confidence":0.4,"triage":{"at":"2026-11-10T14:26:22Z","model":"claude-haiku-5-5","output":{"fix":"- `Firefox 160`\n- `Firefox ESR 153.7`","reach":"unknown","title":"Firefox: invalid pointer in DOM Editor component, fixed in 160","impact":"medium","summary":"Firefox has an invalid pointer bug in its DOM Editor component. The sources do not say what an attacker can do with it beyond the memory error itself.","audience":"everyone","category":"other","nicknames":[],"who_cares":["firefox","browser"],"confidence":0.4,"fix_status":"available","needs_auth":"unknown","worst_case":"unknown; the sources do not state the attacker outcome","analyst_note":"Check the Mozilla security advisory and the CVE-2026-124873 entry for the trigger, attacker outcome and whether it is exploited; sources given here are only the NVD link and a one-line description.","how_to_check":"- Check your Firefox version in Help > About Firefox; the sources name Firefox 160 and Firefox ESR 153.7 as the fixed releases.","plain_action":"Update Firefox to version 160 or Firefox ESR 153.7 through its built-in update check.","product_name":"","needs_analyst":true,"not_affected_if":["firefox-160-or-later"],"who_is_affected":"Anyone running Firefox before the fixed releases named in the sources. The sources do not describe the trigger, the data path, or any special configuration needed.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000705,"input_tokens":4474,"output_tokens":516,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-124873':13A,16A '-2026':12A,15A '153.7':63C '160':10A,59C 'attack':37B 'beyond':42B 'browser':17B 'bug':24B 'compon':7A,29B,52C 'cve':11A,14A 'dom':5A,27B,50C 'editor':6A,28B,51C 'error':45B 'esr':62C 'firefox':1A,18B,19B,58C,61C 'fix':8A,56C 'invalid':2A,22B,46C 'memori':44B 'pointer':3A,23B,47C 'say':34B 'sourc':31B 'vulner':54C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Firefox before the fixed releases named in the sources. The sources do not describe the trigger, the data path, or any special configuration needed.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Firefox to version 160 or Firefox ESR 153.7 through its built-in update check.","pkeys":[],"ptokens":[],"labels":["browser","firefox","other","unknown"],"campaign_type":null,"search_a":"'-124873':13A,16A '-2026':12A,15A '160':10A 'compon':7A 'cve':11A,14A 'dom':5A 'editor':6A 'firefox':1A 'fix':8A 'invalid':2A 'pointer':3A","search_b":"'attack':37B 'beyond':42B 'browser':17B 'bug':24B 'compon':29B 'dom':27B 'editor':28B 'error':45B 'firefox':18B,19B 'invalid':22B 'memori':44B 'pointer':23B 'say':34B 'sourc':31B","search_c":"'153.7':63C '160':59C 'compon':52C 'dom':50C 'editor':51C 'esr':62C 'firefox':58C,61C 'fix':56C 'invalid':46C 'pointer':47C 'vulner':54C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T14:17:19+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-124873","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124873","severity":null,"published_at":"2026-11-10T14:17:19+00:00","modified_at":"2026-11-10T14:17:19+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"}