{"id":"CVE-2023-6345","kind":"vulnerability","aliases":["CVE-2023-6345"],"related":[],"title":"Integer overflow in Skia in Google Chrome prior to 119.0.6045.199 allowed a remote attacker who had compromised the…","description":"Google Chromium Skia contains an integer overflow vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a malicious file. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.\n\nCISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","summary":"Skia, the 2D graphics library inside Google Chrome, ChromeOS, Android and Flutter, has an integer overflow. A remote attacker who has already compromised the renderer process can use a malicious file to escape the browser sandbox.","severity":"critical","cvss":9.6,"epss":null,"exploited":true,"exploited_at":"2023-11-30T00:00:00+00:00","products":[{"name":"Google Chromium Skia","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"google chrome","fixed":["119.0.6045.199"],"affected":"< 119.0.6045.199","ecosystem":"vendor"},{"name":"debian linux","fixed":[],"affected":"= 11.0","ecosystem":"vendor"},{"name":"debian linux","fixed":[],"affected":"= 12.0","ecosystem":"vendor"},{"name":"fedoraproject fedora","fixed":[],"affected":"= 37","ecosystem":"vendor"},{"name":"fedoraproject fedora","fixed":[],"affected":"= 38","ecosystem":"vendor"},{"name":"fedoraproject fedora","fixed":[],"affected":"= 39","ecosystem":"vendor"},{"name":"microsoft edge chromium","fixed":["119.0.2151.97"],"affected":"< 119.0.2151.97","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["android","browser-users","chrome","chromeos","exploited","flutter","runtime"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Update Google Chrome, ChromeOS, Android or Flutter to a build that includes the vendor fix; the sources do not name fixed versions. Follow the vendor instructions referenced by CISA.","status":"open","published_at":"2023-11-29T12:15:07+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T21:02:45+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-23T21:02:45Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome, ChromeOS, Android or Flutter to a build that includes the vendor fix; the sources do not name fixed versions. Follow the vendor instructions referenced by CISA.","reach":"internet","impact":"high","summary":"Skia, the 2D graphics library inside Google Chrome, ChromeOS, Android and Flutter, has an integer overflow. A remote attacker who has already compromised the renderer process can use a malicious file to escape the browser sandbox.","category":"runtime","who_cares":["chrome","chromeos","android","flutter","browser-users"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker escapes browser sandbox after renderer compromise, reaching the host system.","analyst_note":"Find fixed Chrome/Flutter/Android versions and the vendor advisory for CVE-2023-6345 (Chrome Releases blog, Dec 2023) to fill how_to_check and fix.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000488,"input_tokens":2857,"output_tokens":404,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2023':19A,22A '-6345':20A,23A '119.0.6045.199':10A '2d':53B 'action':131C 'affect':118C 'allow':11A,96C 'alreadi':72B 'android':42B,60B,123C 'appli':132C 'attack':14A,69B,99C 'browser':44B,85B 'browser-us':43B 'chrome':7A,28A,46B,58B,120C 'chromeo':47B,59B,122C 'chromium':25A,41A,88C 'cisa':129C 'compromis':17A,73B,102C 'contain':90C 'cve':18A,21A 'debian':29A,31A 'discontinu':138C 'edge':40A 'escap':83B,111C 'exploit':48B 'fedora':34A,36A,38A 'fedoraproject':33A,35A,37A 'file':81B,115C 'flutter':49B,62B,124C 'googl':6A,57B,87C,119C 'google':24A,27A 'graphic':54B 'insid':56B 'instruct':136C 'integ':1A,65B,92C 'librari':55B 'linux':30A,32A 'malici':80B,114C 'microsoft':39A 'mitig':133C,144C 'overflow':2A,66B,93C 'per':134C 'perform':108C 'possibl':126C 'potenti':107C 'prior':8A 'process':76B,105C 'product':128C,142C 'remot':13A,68B,98C 'render':75B,104C 'requir':130C 'runtim':50B 'sandbox':86B,110C 'skia':4A,26A,51B,89C 'unavail':146C 'use':78B,139C 'user':45B 'vendor':135C 'via':112C 'vulner':94C,117C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2023-11-29T12:15:07+00:00","kev":{"dateAdded":"2023-11-30","dueDate":"2023-12-21","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2023-6345","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-6345","severity":null,"published_at":"2023-11-30T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T10:39:05+00:00","note":null},{"source":"nvd","external_id":"CVE-2023-6345","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6345","severity":null,"published_at":"2023-11-29T12:15:07+00:00","modified_at":"2026-06-17T06:50:34+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"}