{"id":"CVE-2025-31277","kind":"vulnerability","aliases":["CVE-2025-31277"],"related":[],"title":"The issue was addressed with improved memory handling","description":"Apple Safari, iOS, watchOS, visionOS, iPadOS, macOS, and tvOS contain a buffer overflow vulnerability that could allow the processing of maliciously crafted web content which may lead to memory corruption.\n\nCISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","summary":"Apple Safari, iOS, iPadOS, macOS, watchOS, visionOS and tvOS have a buffer overflow in web content processing. A malicious web page can corrupt memory, which can lead to code execution in the browser or device.","severity":"high","cvss":8.8,"epss":null,"exploited":true,"exploited_at":"2026-03-20T00:00:00+00:00","products":[{"name":"Apple Multiple Products","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"apple safari","fixed":["18.6"],"affected":"< 18.6","ecosystem":"vendor"},{"name":"apple ipados","fixed":["18.6"],"affected":"< 18.6","ecosystem":"vendor"},{"name":"apple iphone os","fixed":["18.6"],"affected":"< 18.6","ecosystem":"vendor"},{"name":"apple macos","fixed":["15.6"],"affected":">= 15.0, < 15.6","ecosystem":"vendor"},{"name":"apple tvos","fixed":["18.6"],"affected":"< 18.6","ecosystem":"vendor"},{"name":"apple visionos","fixed":["2.6"],"affected":"< 2.6","ecosystem":"vendor"},{"name":"apple watchos","fixed":["11.6"],"affected":"< 11.6","ecosystem":"vendor"},{"name":"webkitgtk","fixed":["2.50.0"],"affected":"< 2.50.0","ecosystem":"vendor"},{"name":"wpewebkit wpe webkit","fixed":["2.50.0"],"affected":"< 2.50.0","ecosystem":"vendor"},{"name":"redhat enterprise linux","fixed":[],"affected":"= 6.0","ecosystem":"vendor"},{"name":"redhat enterprise linux","fixed":[],"affected":"= 7.0","ecosystem":"vendor"},{"name":"redhat enterprise linux","fixed":[],"affected":"= 8.0","ecosystem":"vendor"},{"name":"redhat enterprise linux","fixed":[],"affected":"= 9.0","ecosystem":"vendor"},{"name":"redhat enterprise linux aus","fixed":[],"affected":"= 8.2","ecosystem":"vendor"},{"name":"redhat enterprise linux aus","fixed":[],"affected":"= 8.4","ecosystem":"vendor"},{"name":"redhat enterprise linux aus","fixed":[],"affected":"= 8.6","ecosystem":"vendor"},{"name":"redhat enterprise linux els","fixed":[],"affected":"= 7.0","ecosystem":"vendor"},{"name":"redhat enterprise linux eus","fixed":[],"affected":"= 8.4","ecosystem":"vendor"},{"name":"redhat enterprise linux eus","fixed":[],"affected":"= 8.6","ecosystem":"vendor"},{"name":"redhat enterprise linux eus","fixed":[],"affected":"= 9.4","ecosystem":"vendor"},{"name":"redhat enterprise linux tus","fixed":[],"affected":"= 8.6","ecosystem":"vendor"},{"name":"redhat enterprise linux tus","fixed":[],"affected":"= 8.8","ecosystem":"vendor"},{"name":"redhat enterprise linux update services for sap solutions","fixed":[],"affected":"= 8.6","ecosystem":"vendor"},{"name":"redhat enterprise linux update services for sap solutions","fixed":[],"affected":"= 8.8","ecosystem":"vendor"},{"name":"redhat enterprise linux update services for sap solutions","fixed":[],"affected":"= 9.0","ecosystem":"vendor"},{"name":"redhat enterprise linux update services for sap solutions","fixed":[],"affected":"= 9.2","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["apple","exploited","infrastructure","ios","ipados","macos","safari"],"not_affected_if":["unpatched-builds-not-in-use"],"how_to_check":"Check the device OS version under Settings > General > About (iOS/iPadOS/visionOS) or Apple menu > About This Mac (macOS); Safari version is shown in Safari > About Safari.","fix":"Update Apple devices and Safari to the latest patched release per Apple's security notes; the specific fixed versions are unknown from the sources.","status":"open","published_at":"2025-07-30T00:15:30+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:39:03+00:00","updated_at":"2026-10-23T23:44:51+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T20:39:03Z","model":"claude-haiku-5-5","output":{"fix":"Update Apple devices and Safari to the latest patched release per Apple's security notes; the specific fixed versions are unknown from the sources.\nunknown","reach":"internet","summary":"Apple Safari, iOS, iPadOS, macOS, watchOS, visionOS and tvOS have a buffer overflow in web content processing. A malicious web page can corrupt memory, which can lead to code execution in the browser or device.","category":"infrastructure","who_cares":["apple","safari","ios","macos","ipados"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code on the device by luring a user to a malicious web page","analyst_note":"Find Apple's security content page for CVE-2025-31277 to get fixed versions per product and the exact exploitation details.","how_to_check":"Check the device OS version under Settings > General > About (iOS/iPadOS/visionOS) or Apple menu > About This Mac (macOS); Safari version is shown in Safari > About Safari.\nunknown","needs_analyst":true,"not_affected_if":["unpatched-builds-not-in-use"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000466,"input_tokens":2558,"output_tokens":420,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':201C '-2025':10A,13A '-31277':11A,14A '22':200C 'action':191C 'address':4A 'allow':175C 'appl':117B,124B,159C 'apple':15A,18A,20A,22A,25A,27A,29A,31A 'appli':192C 'applic':198C 'aus':52A,56A,60A 'bod':199C 'browser':156B 'buffer':135B,170C 'cisa':189C 'cloud':204C 'code':152B 'contain':168C 'content':139B,182C 'corrupt':146B,188C 'could':174C 'craft':180C 'cve':9A,12A 'devic':158B 'discontinu':207C 'els':64A 'enterprise':38A,41A,44A,47A,50A,54A,58A,62A,66A,70A,74A,78A,82A,86A,94A,102A,110A 'eus':68A,72A,76A 'execut':153B 'exploit':118B 'follow':197C 'for':90A,98A,106A,114A 'guidanc':202C 'handl':8A 'improv':6A 'infrastructur':119B 'instruct':196C 'io':120B,126B,161C 'ipado':121B,127B,164C 'ipados':21A 'iphone':23A 'issu':2A 'lead':150B,185C 'linux':39A,42A,45A,48A,51A,55A,59A,63A,67A,71A,75A,79A,83A,87A,95A,103A,111A 'maco':122B,128B,165C 'macos':26A 'malici':142B,179C 'may':184C 'memori':7A,147B,187C 'mitig':193C,213C 'multiple':16A 'os':24A 'overflow':136B,171C 'page':144B 'per':194C 'process':140B,177C 'product':211C 'products':17A 'redhat':37A,40A,43A,46A,49A,53A,57A,61A,65A,69A,73A,77A,81A,85A,93A,101A,109A 'requir':190C 'safari':19A,123B,125B,160C 'sap':91A,99A,107A,115A 'servic':205C 'services':89A,97A,105A,113A 'solutions':92A,100A,108A,116A 'tus':80A,84A 'tvos':28A,132B,167C 'unavail':215C 'update':88A,96A,104A,112A 'use':208C 'vendor':195C 'visiono':130B,163C 'visionos':30A 'vulner':172C 'watcho':129B,162C 'watchos':32A 'web':138B,143B,181C 'webkit':36A 'webkitgtk':33A 'wpe':35A 'wpewebkit':34A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2025-07-30T00:15:30+00:00","kev":{"dateAdded":"2026-03-20","dueDate":"2026-04-03","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:R/S:U/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2025-31277","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-31277","severity":null,"published_at":"2026-03-20T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T11:39:14+00:00","note":null},{"source":"nvd","external_id":"CVE-2025-31277","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-31277","severity":null,"published_at":"2025-07-30T00:15:30+00:00","modified_at":"2026-09-21T17:17:25+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+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"}