{"id":"CVE-2018-17480","kind":"vulnerability","aliases":["CVE-2018-17480"],"related":[],"title":"Execution of user supplied Javascript during array deserialization leading to an out of bounds write in V8 in Google…","description":"Google Chromium V8 Engine contains out-of-bounds write vulnerability that allows a remote attacker to execute code inside a sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.\n\nCISA required action: Apply updates per vendor instructions.","summary":"An out-of-bounds write in the Chromium V8 JavaScript engine lets a remote attacker run code inside the browser sandbox by getting a victim to open a crafted HTML page. It is listed as actively exploited in the wild.","severity":"high","cvss":8.8,"epss":0.3564,"exploited":true,"exploited_at":"2022-06-08T00:00:00+00:00","products":[{"name":"Google Chromium V8","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"google chrome","fixed":["71.0.3578.80"],"affected":"< 71.0.3578.80","ecosystem":"vendor"},{"name":"redhat enterprise linux desktop","fixed":[],"affected":"= 6.0","ecosystem":"vendor"},{"name":"redhat enterprise linux server","fixed":[],"affected":"= 6.0","ecosystem":"vendor"},{"name":"redhat enterprise linux workstation","fixed":[],"affected":"= 6.0","ecosystem":"vendor"},{"name":"debian linux","fixed":[],"affected":"= 9.0","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browsers","chrome","chromium","edge","exploited","opera","runtime"],"not_affected_if":["fixed-browser-version"],"how_to_check":"Open the browser's version page (chrome://version or edge://version) and compare against the fixed release in the vendor advisory.","fix":"Update Chrome, Edge, Opera or other Chromium-based browsers to a release that includes the vendor's fix for this CVE, per CISA's required action.","status":"open","published_at":"2018-12-11T16:29:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:12:39+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-23T21:12:39Z","model":"claude-haiku-5-5","output":{"fix":"Update Chrome, Edge, Opera or other Chromium-based browsers to a release that includes the vendor's fix for this CVE, per CISA's required action.\nunknown","reach":"internet","impact":"medium","summary":"An out-of-bounds write in the Chromium V8 JavaScript engine lets a remote attacker run code inside the browser sandbox by getting a victim to open a crafted HTML page. It is listed as actively exploited in the wild.","category":"runtime","who_cares":["chrome","chromium","edge","opera","browsers"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after the victim visits a page.","analyst_note":"Find the fixed Chromium version and advisory link for CVE-2018-17480 in the Chrome release notes; sources do not give affected or fixed versions.","how_to_check":"Open the browser's version page (chrome://version or edge://version) and compare against the fixed release in the vendor advisory.\nunknown\nunknown","needs_analyst":true,"not_affected_if":["fixed-browser-version"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.0005,"input_tokens":2894,"output_tokens":421,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-17480':22A,25A '-2018':21A,24A 'action':143C 'activ':88B 'affect':123C 'allow':105C 'appli':144C 'array':7A 'attack':67B,108C 'bound':14A,56B,101C 'browser':45B,72B,126C 'chrome':30A,46B,136C 'chromium':27A,47B,60B,94C,129C 'cisa':141C 'code':69B,111C 'contain':97C 'could':122C 'craft':81B,117C 'cve':20A,23A 'debian':43A 'deseri':8A 'desktop':34A 'edg':48B,138C 'engin':63B,96C 'enterprise':32A,36A,40A 'execut':1A,110C 'exploit':49B,89B 'get':75B 'googl':19A,93C,135C 'google':26A,29A 'html':82B,118C 'includ':130C 'insid':70B,112C 'instruct':148C 'javascript':5A,62B 'lead':9A 'let':64B 'limit':133C 'linux':33A,37A,41A,44A 'list':86B 'microsoft':137C 'multipl':124C 'open':79B 'opera':50B,140C 'out-of-bound':53B,98C 'page':83B,119C 'per':146C 'redhat':31A,35A,39A 'remot':66B,107C 'requir':142C 'run':68B 'runtim':51B 'sandbox':73B,114C 'server':38A 'suppli':4A 'updat':145C 'user':3A 'util':128C 'v8':17A,28A,61B,95C 'vendor':147C 'via':115C 'victim':77B 'vulner':103C,121C 'web':125C 'wild':92B 'workstation':42A 'write':15A,57B,102C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2018-12-11T16:29:00+00:00","kev":{"dateAdded":"2022-06-08","dueDate":"2022-06-22","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2018-17480","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-17480","severity":null,"published_at":"2022-06-08T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T10:39:06+00:00","note":null},{"source":"epss","external_id":"CVE-2018-17480","url":"https://api.first.org/data/v1/epss?cve=CVE-2018-17480","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:45+00:00","fetched_at":"2026-10-23T19:13:45+00:00","note":null},{"source":"nvd","external_id":"CVE-2018-17480","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-17480","severity":null,"published_at":"2018-12-11T16:29:00+00:00","modified_at":"2026-06-17T01:45:56+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+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"}