{"id":"CVE-2023-2033","kind":"vulnerability","aliases":["CVE-2023-2033"],"related":[],"title":"Type confusion in V8 in Google Chrome prior to 112.0.5615.121 allowed a remote attacker to potentially exploit heap…","description":"Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption 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":"A type confusion bug in the V8 JavaScript engine used by Chromium lets a remote attacker corrupt heap memory by serving a crafted HTML page. Exploitation in the wild is confirmed by CISA's KEV catalog, and the bug affects Chrome, Edge, Opera and other Chromium browsers.","severity":"high","cvss":8.8,"epss":null,"exploited":true,"exploited_at":"2023-04-17T00:00:00+00:00","products":[{"name":"Google Chromium V8","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"google chrome","fixed":["112.0.5615.121"],"affected":"< 112.0.5615.121","ecosystem":"vendor"},{"name":"debian linux","fixed":[],"affected":"= 11.0","ecosystem":"vendor"},{"name":"fedoraproject fedora","fixed":[],"affected":"= 36","ecosystem":"vendor"},{"name":"fedoraproject fedora","fixed":[],"affected":"= 37","ecosystem":"vendor"},{"name":"fedoraproject fedora","fixed":[],"affected":"= 38","ecosystem":"vendor"},{"name":"couchbase server","fixed":["7.1.5"],"affected":"< 7.1.5","ecosystem":"vendor"},{"name":"couchbase server","fixed":[],"affected":"= 7.2.0","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browser","chrome","chromium","edge","exploited","opera","runtime"],"not_affected_if":["browser-already-patched"],"how_to_check":"Open the browser's version page (chrome://version in Chrome or Edge) and compare the Chromium version against the fixed version in the vendor advisory.","fix":"Update the browser to a Chromium release that includes the vendor fix, per the vendor instructions CISA references.","status":"open","published_at":"2023-04-14T19:15:09+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:06:54+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-23T21:06:54Z","model":"claude-haiku-5-5","output":{"fix":"Update the browser to a Chromium release that includes the vendor fix, per the vendor instructions CISA references.\nunknown","reach":"internet","impact":"high","summary":"A type confusion bug in the V8 JavaScript engine used by Chromium lets a remote attacker corrupt heap memory by serving a crafted HTML page. Exploitation in the wild is confirmed by CISA's KEV catalog, and the bug affects Chrome, Edge, Opera and other Chromium browsers.","category":"runtime","who_cares":["chrome","edge","opera","chromium","browser"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code in the browser process via a malicious web page.","analyst_note":"Fixed Chromium version and vendor advisory link are missing from sources; look up the Chrome stable release notes for the CVE-2023-2033 fix version.","how_to_check":"Open the browser's version page (chrome://version in Chrome or Edge) and compare the Chromium version against the fixed version in the vendor advisory.\nunknown","needs_analyst":true,"not_affected_if":["browser-already-patched"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000501,"input_tokens":2847,"output_tokens":433,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2023':20A,23A '-2033':21A,24A '112.0.5615.121':10A 'action':143C 'affect':88B,123C 'allow':11A,106C 'appli':144C 'attack':14A,64B,109C 'browser':42B,95B,126C 'bug':52B,87B 'catalog':84B 'chrome':7A,29A,43B,89B,136C 'chromium':26A,44B,60B,94B,97C,129C 'cisa':81B,141C 'confirm':79B 'confus':2A,51B,103C 'contain':100C 'corrupt':65B,114C 'couchbase':38A,40A 'could':122C 'craft':71B,117C 'cve':19A,22A 'debian':30A 'edg':45B,90B,138C 'engin':57B,99C 'exploit':17A,46B,74B,112C 'fedora':33A,35A,37A 'fedoraproject':32A,34A,36A 'googl':6A,96C,135C 'google':25A,28A 'heap':18A,66B,113C 'html':72B,118C 'includ':130C 'instruct':148C 'javascript':56B 'kev':83B 'let':61B 'limit':133C 'linux':31A 'memori':67B 'microsoft':137C 'multipl':124C 'opera':47B,91B,140C 'page':73B,119C 'per':146C 'potenti':16A,111C 'prior':8A 'remot':13A,63B,108C 'requir':142C 'runtim':48B 'serv':69B 'server':39A,41A 'type':1A,50B,102C 'updat':145C 'use':58B 'util':128C 'v8':4A,27A,55B,98C 'vendor':147C 'via':115C 'vulner':104C,121C 'web':125C 'wild':77B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2023-04-14T19:15:09+00:00","kev":{"dateAdded":"2023-04-17","dueDate":"2023-05-08","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-2023-2033","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-2033","severity":null,"published_at":"2023-04-17T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T11:39:16+00:00","note":null},{"source":"nvd","external_id":"CVE-2023-2033","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2033","severity":null,"published_at":"2023-04-14T19:15:09+00:00","modified_at":"2026-06-17T05:51:14+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"}