{"schemaVersion":3,"id":"CVE-2025-43511","aliases":["UBUNTU-CVE-2025-43511","DEBIAN-CVE-2025-43511"],"status":"published","duplicateOf":null,"title":null,"description":"A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.","dates":{"published":"2025-12-12T20:56:30.795Z","modified":"2026-07-15T01:26:20.128Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00462,"percentile":0.38726,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00462},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00462,"percentile":0.38726}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00462,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00462,"percentile":0.38726}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-416","name":"Use After Free","description":"The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory \"belongs\" to the code that operates on the new pointer.","type":"weakness","status":"Stable","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/416.html"}],"affected":[{"vendor":"apple","product":"ios and ipados","name":"iOS and iPadOS","label":"ios and ipados","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 18.7.2","noFixRecorded":false,"fixedIn":null},{"text":"< 26.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 18.7.2 | < 26.2","eol":null,"hubHref":"/vendor/apple/ios_and_ipados"},{"vendor":"apple","product":"ipados","name":"ipados","label":"ipados","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 18.7.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 18.7.2","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"ipados","label":"Apple iPadOS","category":"os"}},"hubHref":"/vendor/apple/ipados"},{"vendor":"apple","product":"iphone_os","name":"iphone os","label":"iphone_os","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 18.7.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 18.7.2","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"ios","label":"Apple iOS","category":"os"}},"hubHref":"/vendor/apple/iphone_os"},{"vendor":"apple","product":"macos","name":"macos","label":"macos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 26.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 26.2","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"macos","label":"Apple macOS","category":"os"}},"hubHref":"/vendor/apple/macos"},{"vendor":"apple","product":"safari","name":"safari","label":"safari","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 26.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 26.2","eol":null,"hubHref":"/vendor/apple/safari"},{"vendor":"apple","product":"visionos","name":"visionos","label":"visionos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 26.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 26.2","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"visionos","label":"Apple visionOS","category":"os"}},"hubHref":"/vendor/apple/visionos"},{"vendor":"apple","product":"watchos","name":"watchos","label":"watchos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 26.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 26.2","eol":null,"hubHref":"/vendor/apple/watchos"},{"vendor":"debian","product":"webkit2gtk","name":"webkit2gtk","label":"webkit2gtk","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/webkit2gtk","purlType":"deb","versions":[{"text":"< 2.50.6-1~deb12u1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.50.6-1~deb13u1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.50.5-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.50.6-1~deb12u1 | < 2.50.6-1~deb13u1 | < 2.50.5-1","eol":null,"hubHref":null},{"vendor":"debian","product":"wpewebkit","name":"wpewebkit","label":"wpewebkit","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/wpewebkit","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 2.50.5-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 2.50.5-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"qtwebkit-opensource-src","name":"qtwebkit-opensource-src","label":"qtwebkit-opensource-src","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/qtwebkit-opensource-src","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"qtwebkit-source","name":"qtwebkit-source","label":"qtwebkit-source","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/qtwebkit-source","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"webkit2gtk","name":"webkit2gtk","label":"webkit2gtk","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/webkit2gtk","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 2.52.3-0ubuntu0.24.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.52.3-0ubuntu0.25.10.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 2.52.3-0ubuntu0.24.04.1 | < 2.52.3-0ubuntu0.25.10.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"webkitgtk","name":"webkitgtk","label":"webkitgtk","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/webkitgtk","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"wpewebkit","name":"wpewebkit","label":"wpewebkit","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/wpewebkit","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":14,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.apple.com/en-us/125633","label":"support.apple.com/en-us/125633","hostname":"support.apple.com","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/125884","label":"support.apple.com/en-us/125884","hostname":"support.apple.com","tags":[]},{"url":"https://support.apple.com/en-us/125886","label":"support.apple.com/en-us/125886","hostname":"support.apple.com","tags":[]},{"url":"https://support.apple.com/en-us/125890","label":"support.apple.com/en-us/125890","hostname":"support.apple.com","tags":[]},{"url":"https://support.apple.com/en-us/125891","label":"support.apple.com/en-us/125891","hostname":"support.apple.com","tags":[]},{"url":"https://support.apple.com/en-us/125892","label":"support.apple.com/en-us/125892","hostname":"support.apple.com","tags":[]},{"url":"https://access.redhat.com/security/cve/CVE-2025-43511","label":"access.redhat.com/security/cve/CVE-2025-43511","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2448787","label":"bugzilla.redhat.com/show_bug.cgi?id=2448787","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-43511.json","label":"security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-43511.json","hostname":"security.access.redhat.com","tags":["X Sadp Csaf Vex"]},{"url":"https://access.redhat.com/errata/RHSA-2026:22136","label":"access.redhat.com/errata/RHSA-2026:22136","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:10702","label":"access.redhat.com/errata/RHSA-2026:10702","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:16056","label":"access.redhat.com/errata/RHSA-2026:16056","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:13845","label":"access.redhat.com/errata/RHSA-2026:13845","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:11814","label":"access.redhat.com/errata/RHSA-2026:11814","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:19535","label":"access.redhat.com/errata/RHSA-2026:19535","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:16695","label":"access.redhat.com/errata/RHSA-2026:16695","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:14659","label":"access.redhat.com/errata/RHSA-2026:14659","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:11329","label":"access.redhat.com/errata/RHSA-2026:11329","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:9692","label":"access.redhat.com/errata/RHSA-2026:9692","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:19206","label":"access.redhat.com/errata/RHSA-2026:19206","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://ubuntu.com/security/CVE-2025-43511","label":"ubuntu.com/security/CVE-2025-43511","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-43511","label":"www.cve.org/CVERecord?id=CVE-2025-43511","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-8237-1","label":"ubuntu.com/security/notices/USN-8237-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-43511","label":"security-tracker.debian.org/tracker/CVE-2025-43511","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DSA-6172-1","OPENSUSE-SU-2026:20518-1","RHSA-2026:10702","RHSA-2026:11329","RHSA-2026:11814","RHSA-2026:13845","RHSA-2026:14659","RHSA-2026:16056","RHSA-2026:16695","RHSA-2026:19206","RHSA-2026:19535","RHSA-2026:22136","RHSA-2026:9692","SUSE-SU-2026:1139-1","SUSE-SU-2026:1150-1","SUSE-SU-2026:1364-1","SUSE-SU-2026:21180-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:20518-1","SUSE-SU-2026:1139-1","SUSE-SU-2026:1150-1","SUSE-SU-2026:1364-1","SUSE-SU-2026:21180-1","USN-8237-1"]},"timeline":[{"kind":"published","date":"2025-12-12T20:56:30.795Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-15T01:26:20.128Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:29:53.675Z","stale":false,"partial":false}}