{"id":"CVE-2025-24201","kind":"vulnerability","aliases":["CVE-2025-24201"],"related":[],"title":"An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions","description":"An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in Safari 18.3.1, iOS 15.8.4 and iPadOS 15.8.4, iOS 16.7.11 and iPadOS 16.7.11, iOS 18.3.2 and iPadOS 18.3.2, iPadOS 17.7.6, macOS Sequoia 15.3.2, visionOS 2.3.2, watchOS 11.4. Maliciously crafted web content may be able to break out of Web Content sandbox. This is a supplementary fix for an attack that was blocked in iOS 17.2. (Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 17.2.).","summary":"Apple's WebKit browser engine has an out-of-bounds write that lets malicious web content escape the Web Content sandbox. Attackers are exploiting it in the wild, per CISA's Known Exploited Vulnerabilities catalog.","severity":"critical","cvss":10.0,"epss":null,"exploited":true,"exploited_at":"2025-03-13T00:00:00+00:00","products":[{"name":"Apple Multiple Products","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"apple safari","fixed":["18.3.1"],"affected":"< 18.3.1","ecosystem":"vendor"},{"name":"apple macos","fixed":["15.3.2"],"affected":">= 15.0, < 15.3.2","ecosystem":"vendor"},{"name":"apple visionos","fixed":["2.3.2"],"affected":"< 2.3.2","ecosystem":"vendor"},{"name":"apple watchos","fixed":["11.4"],"affected":"< 11.4","ecosystem":"vendor"},{"name":"apple ipados","fixed":["15.8.4"],"affected":">= 15.8, < 15.8.4","ecosystem":"vendor"},{"name":"apple ipados","fixed":["16.7.11"],"affected":">= 16.7, < 16.7.11","ecosystem":"vendor"},{"name":"apple ipados","fixed":["17.7.6"],"affected":">= 17.0, < 17.7.6","ecosystem":"vendor"},{"name":"apple ipados","fixed":["18.3.2"],"affected":">= 18.0, < 18.3.2","ecosystem":"vendor"},{"name":"apple iphone os","fixed":["15.8.4"],"affected":">= 15.8, < 15.8.4","ecosystem":"vendor"},{"name":"apple iphone os","fixed":["16.7.11"],"affected":">= 16.7, < 16.7.11","ecosystem":"vendor"},{"name":"apple iphone os","fixed":["18.3.2"],"affected":">= 17.0, < 18.3.2","ecosystem":"vendor"},{"name":"debian linux","fixed":[],"affected":"= 11.0","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["apple","exploited","ios","ipados","macos","safari","vendor","webkit"],"not_affected_if":["unpatched-versions-only-if-already-updated"],"how_to_check":"Check the installed iOS, iPadOS, macOS, or Safari version against Apple's security notes for the patch that fixes CVE-2025-24201; sources do not give a version check command.","fix":"Update Apple devices to the patched OS and Safari releases listed in Apple's security advisory for CVE-2025-24201; for non-Apple apps that embed WebKit, update to a WebKit build that includes the fix.","status":"open","published_at":"2025-03-11T18:15:30+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:49:00+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-23T20:49:00Z","model":"claude-haiku-5-5","output":{"fix":"Update Apple devices to the patched OS and Safari releases listed in Apple's security advisory for CVE-2025-24201; for non-Apple apps that embed WebKit, update to a WebKit build that includes the fix.","reach":"internet","summary":"Apple's WebKit browser engine has an out-of-bounds write that lets malicious web content escape the Web Content sandbox. Attackers are exploiting it in the wild, per CISA's Known Exploited Vulnerabilities catalog.","category":"vendor","who_cares":["apple","ios","macos","safari","webkit","ipados"],"confidence":0.6,"needs_auth":"no","worst_case":"Malicious web page can break out of browser sandbox and run code on the device.","analyst_note":"Find the exact fixed iOS/macOS/Safari versions in Apple's security advisory for CVE-2025-24201 and confirm the KEV due date.","how_to_check":"Check the installed iOS, iPadOS, macOS, or Safari version against Apple's security notes for the patch that fixes CVE-2025-24201; sources do not give a version check command.","needs_analyst":true,"not_affected_if":["unpatched-versions-only-if-already-updated"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000488,"input_tokens":2613,"output_tokens":454,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2025':18A,21A '-24201':19A,22A '11.4':143C '15.3.2':139C '15.8.4':121C,124C '16.7.11':126C,129C '17.2':171C,200C '17.7.6':136C '18.3.1':119C '18.3.2':131C,134C '2.3.2':141C 'abl':150C 'action':16A,112C 'address':9A,105C 'appl':53B,61B,172C 'apple':23A,26A,28A,30A,32A,34A,36A,38A,40A,42A,45A,48A 'attack':83B,165C,189C 'awar':174C 'block':168C 'bound':5A,71B,101C 'break':152C 'browser':64B 'catalog':96B 'check':12A,108C 'cisa':91B 'content':77B,81B,147C,156C 'craft':145C 'cve':17A,20A 'debian':51A 'engin':65B 'escap':78B 'exploit':54B,85B,94B,184C 'extrem':187C 'fix':116C,162C 'improv':11A,107C 'individu':193C 'io':55B,120C,125C,130C,170C,197C,199C 'ipado':56B,123C,128C,133C,135C 'ipados':35A,37A,39A,41A 'iphone':43A,46A,49A 'issu':7A,103C,114C,180C 'known':93B 'let':74B 'linux':52A 'maco':57B,137C 'macos':29A 'malici':75B,144C 'may':148C,181C 'multiple':24A 'os':44A,47A,50A 'out-of-bound':2A,68B,98C 'per':90B 'prevent':14A,110C 'products':25A 'report':177C 'safari':27A,58B,118C 'sandbox':82B,157C 'sequoia':138C 'sophist':188C 'specif':191C 'supplementari':161C 'target':192C 'unauthor':15A,111C 'vendor':59B 'version':195C 'visiono':140C 'visionos':31A 'vulner':95B 'watcho':142C 'watchos':33A 'web':76B,80B,146C,155C 'webkit':60B,63B 'wild':89B 'write':6A,72B,102C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2025-03-11T18:15:30+00:00","kev":{"dateAdded":"2025-03-13","dueDate":"2025-04-03","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2025-24201","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-24201","severity":null,"published_at":"2025-03-13T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T16:39:46+00:00","note":null},{"source":"nvd","external_id":"CVE-2025-24201","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-24201","severity":null,"published_at":"2025-03-11T18:15:30+00:00","modified_at":"2026-06-17T08:58:17+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+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"}