{"id":"CVE-2025-43520","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-43520","generatedAt":"2026-10-28T01:13:56.045Z","title":"Apple Multiple Products Classic Buffer Overflow Vulnerability","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.","published":"2025-12-12T21:15:57.000Z","lastModified":"2026-10-07T11:10:00.000Z","status":"Analyzed","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-120"],"affected":["apple/ipados","apple/iphone os","apple/macos","apple/tvos","apple/visionos","apple/watchos"],"epss":{"score":0.00425,"percentile":0.36535,"date":"2026-10-26","history":[]},"kev":{"listed":true,"dateAdded":"2026-03-20","dueDate":"2026-04-03","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.\nhttps://support.apple.com/en-us/125632 ; https://support.apple.com/en-us/125633 ; https://support.apple.com/en-us/125634 ; https://support.apple.com/en-us/125635 ; https://support.apple.com/en-us/125636 ; https://support.apple.com/en-us/125637 ; https://support.apple.com/en-us/125638 ; https://support.apple.com/en-us/125639 ; https://nvd.nist.gov/vuln/detail/CVE-2025-43520"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 April 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://support.apple.com/en-us/125632","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/125633","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/125634","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/125635","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/125636","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/125637","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/125638","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/125639","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/","tags":["Technical Description"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43520","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-43520","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}