{"id":"CVE-2026-124948","kind":"vulnerability","aliases":["CVE-2026-124948"],"related":[],"title":"Firefox: Graphics use-after-free flaw could let a web page run code","description":"Incorrect boundary conditions, use-after-free in the Graphics component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.","summary":"Firefox's Graphics component has a use-after-free and incorrect boundary checks, a memory bug that can corrupt the browser's memory. The sources describe the fix in Firefox 160 and Firefox ESR 153.7 but do not state the attacker's exact outcome.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Firefox","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browser","desktop","firefox","other"],"not_affected_if":["up-to-date-firefox"],"how_to_check":"- Check the Firefox version under Help > About Firefox, or run `firefox --version` on the command line.\n- Compare it against the fixed versions below.","fix":"- Firefox: `160`\n- Firefox ESR: `153.7`","status":"open","published_at":"2026-11-10T14:17:29+00:00","first_seen_at":"2026-11-10T14:22:20+00:00","triaged_at":"2026-11-10T14:23:57+00:00","updated_at":"2026-11-10T14:23:57+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-11-10T14:23:57Z","model":"claude-haiku-5-5","output":{"fix":"- Firefox: `160`\n- Firefox ESR: `153.7`","reach":"internet","title":"Firefox: Graphics use-after-free flaw could let a web page run code","impact":"high","summary":"Firefox's Graphics component has a use-after-free and incorrect boundary checks, a memory bug that can corrupt the browser's memory. The sources describe the fix in Firefox 160 and Firefox ESR 153.7 but do not state the attacker's exact outcome.","audience":"everyone","category":"other","nicknames":[],"who_cares":["firefox","browser","desktop"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Attacker may corrupt browser memory and possibly run code","analyst_note":"Confirm the attacker outcome and exploit conditions in the Mozilla security advisory for the Firefox 160 release, since the NVD entry gives only the description.","how_to_check":"- Check the Firefox version under Help > About Firefox, or run `firefox --version` on the command line.\n- Compare it against the fixed versions below.","plain_action":"Update Firefox to version 160 or ESR 153.7 (Help > About Firefox), or install the latest browser update.","product_name":"Firefox","needs_analyst":true,"not_affected_if":["up-to-date-firefox"],"who_is_affected":"Anyone running a Firefox release before 160 or Firefox ESR before 153.7 is exposed, most likely by visiting a malicious or compromised web page. Users on current Firefox releases are not affected.","user_interaction":"yes","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000745,"input_tokens":4488,"output_tokens":592,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-124948':17A,20A '-2026':16A,19A '153.7':60B,91C '160':56B,87C 'attack':66B 'boundari':37B,71C 'browser':22B,46B 'bug':41B 'check':38B 'code':14A 'compon':28B,80C 'condit':72C 'corrupt':44B 'could':8A 'cve':15A,18A 'describ':51B 'desktop':23B 'esr':59B,90C 'exact':68B 'firefox':1A,21A,24B,25B,55B,58B,86C,89C 'fix':53B,84C 'flaw':7A 'free':6A,34B,76C 'graphic':2A,27B,79C 'incorrect':36B,70C 'let':9A 'memori':40B,48B 'outcom':69B 'page':12A 'run':13A 'sourc':50B 'state':64B 'use':4A,32B,74C 'use-after-fre':3A,31B,73C 'vulner':82C 'web':11A","nicknames":[],"mitigations":[],"who_affected":"Anyone running a Firefox release before 160 or Firefox ESR before 153.7 is exposed, most likely by visiting a malicious or compromised web page. Users on current Firefox releases are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Firefox to version 160 or ESR 153.7 (Help > About Firefox), or install the latest browser update.","pkeys":["firefox"],"ptokens":["firefox"],"labels":["browser","desktop","firefox","other","unknown","vendor"],"campaign_type":null,"search_a":"'-124948':17A,20A '-2026':16A,19A 'code':14A 'could':8A 'cve':15A,18A 'firefox':1A,21A 'flaw':7A 'free':6A 'graphic':2A 'let':9A 'page':12A 'run':13A 'use':4A 'use-after-fre':3A 'web':11A","search_b":"'153.7':60B '160':56B 'attack':66B 'boundari':37B 'browser':22B,46B 'bug':41B 'check':38B 'compon':28B 'corrupt':44B 'describ':51B 'desktop':23B 'esr':59B 'exact':68B 'firefox':24B,25B,55B,58B 'fix':53B 'free':34B 'graphic':27B 'incorrect':36B 'memori':40B,48B 'outcom':69B 'sourc':50B 'state':64B 'use':32B 'use-after-fre':31B","search_c":"'153.7':91C '160':87C 'boundari':71C 'compon':80C 'condit':72C 'esr':90C 'firefox':86C,89C 'fix':84C 'free':76C 'graphic':79C 'incorrect':70C 'use':74C 'use-after-fre':73C 'vulner':82C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T14:17:29+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-124948","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124948","severity":null,"published_at":"2026-11-10T14:17:29+00:00","modified_at":"2026-11-10T14:17:29+00:00","first_seen_at":"2026-11-10T14:22:20+00:00","fetched_at":"2026-11-10T14:22:20+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"}