{"id":"CVE-2026-117972","kind":"vulnerability","aliases":["CVE-2026-117972"],"related":[],"title":"Firefox: Graphics component use-after-free fixed in version 159","description":"Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.","summary":"A use-after-free bug in Firefox's Graphics component lets memory be reused after it is freed. The sources do not state what an attacker can achieve with it.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","desktop","firefox","runtime"],"not_affected_if":["firefox-159-or-later","firefox-esr-153.6-or-later"],"how_to_check":"- Check the installed Firefox version with `firefox --version` and compare against `159` or ESR `153.6`\n- unknown","fix":"- Update Firefox to `159` or Firefox ESR to `153.6`\n- unknown","status":"open","published_at":"2026-10-27T14:16:55+00:00","first_seen_at":"2026-10-27T14:32:24+00:00","triaged_at":"2026-10-27T14:35:17+00:00","updated_at":"2026-10-27T14:35:17+00:00","category":"runtime","confidence":0.4,"triage":{"at":"2026-10-27T14:35:17Z","model":"claude-haiku-5-5","output":{"fix":"- Update Firefox to `159` or Firefox ESR to `153.6`\n- unknown","reach":"unknown","title":"Firefox: Graphics component use-after-free fixed in version 159","impact":"medium","summary":"A use-after-free bug in Firefox's Graphics component lets memory be reused after it is freed. The sources do not state what an attacker can achieve with it.","category":"runtime","nicknames":[],"who_cares":["firefox","desktop","browser"],"confidence":0.4,"needs_auth":"unknown","worst_case":"unknown; memory corruption in the browser graphics code","analyst_note":"Check the Mozilla security advisory for this CVE to confirm the trigger, the impact and whether it is exploited.","how_to_check":"- Check the installed Firefox version with `firefox --version` and compare against `159` or ESR `153.6`\n- unknown","needs_analyst":true,"not_affected_if":["firefox-159-or-later","firefox-esr-153.6-or-later"],"who_is_affected":"Systems running Firefox or Firefox ESR older than `159` or `153.6` are affected. The sources do not say whether any particular configuration or content is needed to trigger it.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000552,"input_tokens":3230,"output_tokens":457,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-117972':14A,17A '-2026':13A,16A '153.6':69C '159':11A,65C 'achiev':50B 'attack':48B 'browser':18B 'bug':27B 'compon':3A,32B,58C 'cve':12A,15A 'desktop':19B 'esr':68C 'firefox':1A,20B,29B,64C,67C 'fix':8A,62C 'free':7A,26B,54C 'freed':40B 'graphic':2A,31B,57C 'let':33B 'memori':34B 'reus':36B 'runtim':21B 'sourc':42B 'state':45B 'use':5A,24B,52C 'use-after-fre':4A,23B,51C 'version':10A 'vulner':60C","nicknames":[],"mitigations":[],"who_affected":"Systems running Firefox or Firefox ESR older than `159` or `153.6` are affected. The sources do not say whether any particular configuration or content is needed to trigger it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T14:16:55+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-117972","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117972","severity":null,"published_at":"2026-10-27T14:16:55+00:00","modified_at":"2026-10-27T14:16:55+00:00","first_seen_at":"2026-10-27T14:32:24+00:00","fetched_at":"2026-10-27T14:32:24+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}