CASCACascade Atlas

Evidence dossier

CVE-2025-24201

CVE-2025-24201

69.1–84.1Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.).

State
PUBLISHED
Published
Mar 11, 2025
Updated
Apr 2, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS4.24%

2026-07-18 · v2026.06.15 · percentile 89.9%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

appleoriginal assertion
container

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.).

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.042400000000; percentile 0.899230000000

Applicability

Cited product scope

Trace impact →
AppleiOS and iPadOS
[{"status": "affected", "version": "0", "lessThan": "15.8.4", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "16.7.11", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "18.3.2", "versionType": "custom"}]unknown
AppleiPadOS
[{"status": "affected", "version": "0", "lessThan": "17.7.6", "versionType": "custom"}]unknown
ApplemacOS
[{"status": "affected", "version": "0", "lessThan": "15.3.2", "versionType": "custom"}]unknown
AppleSafari
[{"status": "affected", "version": "0", "lessThan": "18.3.1", "versionType": "custom"}]unknown
ApplevisionOS
[{"status": "affected", "version": "0", "lessThan": "2.3.2", "versionType": "custom"}]unknown
ApplewatchOS
[{"status": "affected", "version": "0", "lessThan": "11.4", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*; end excluding 18.3.1supported
Unknown vendorUnknown product
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*; start including 15.8; end excluding 15.8.4supported
Unknown vendorUnknown product
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*; start including 16.7; end excluding 16.7.11supported
Unknown vendorUnknown product
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*; start including 17.0; end excluding 17.7.6supported
Unknown vendorUnknown product
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*; start including 18.0; end excluding 18.3.2supported
Unknown vendorUnknown product
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*; start including 15.8; end excluding 15.8.4supported
Unknown vendorUnknown product
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*; start including 16.7; end excluding 16.7.11supported
Unknown vendorUnknown product
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*; start including 17.0; end excluding 18.3.2supported
Unknown vendorUnknown product
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*; start including 15.0; end excluding 15.3.2supported
Unknown vendorUnknown product
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*; end excluding 2.3.2supported
Unknown vendorUnknown product
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*; end excluding 11.4supported
Unknown vendorUnknown product
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

10.0
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.