CASCACascade Atlas

Evidence dossier

CVE-2024-23296

CVE-2024-23296

61.9–76.9Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.4 and iPadOS 17.4, macOS Monterey 12.7.6, macOS Sonoma 14.4, macOS Ventura 13.6.7, tvOS 17.4, visionOS 1.1, watchOS 10.4. An attacker with arbitrary kernel read and write capability may be able to bypass kernel memory protections. Apple is aware of a report that this issue may have been exploited.

State
PUBLISHED
Published
Mar 5, 2024
Updated
Apr 2, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

FIRST EPSS1.41%

2026-07-18 · v2026.06.15 · percentile 69.7%

Source stateNo scored conflict

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

Source comparison

Who said what

appleoriginal assertion
container

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.4 and iPadOS 17.4, macOS Monterey 12.7.6, macOS Sonoma 14.4, macOS Ventura 13.6.7, tvOS 17.4, visionOS 1.1, watchOS 10.4. An attacker with arbitrary kernel read and write capability may be able to bypass kernel memory protections. Apple is aware of a report that this issue may have been exploited.

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Apple Multiple Products Memory Corruption Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.014110000000; percentile 0.696790000000

Applicability

Cited product scope

Trace impact →
appleipad_os
[{"status": "affected", "version": "0", "lessThan": "17.4", "versionType": "custom"}]unknown
appleiphone_os
[{"status": "affected", "version": "0", "lessThan": "17.4", "versionType": "custom"}]unknown
applemacos
[{"status": "affected", "version": "14.0", "lessThan": "14.4", "versionType": "custom"}]unknown
appletvos
[{"status": "affected", "version": "0", "lessThan": "17.4", "versionType": "custom"}]unknown
applevisionos
[{"status": "affected", "version": "0", "lessThan": "1.1", "versionType": "custom"}]unknown
applewatchos
[{"status": "affected", "version": "0", "lessThan": "10.4", "versionType": "custom"}]unknown
AppleiOS and iPadOS
[{"status": "affected", "version": "0", "lessThan": "16.7.8", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "17.4", "versionType": "custom"}]unknown
ApplemacOS
[{"status": "affected", "version": "0", "lessThan": "12.7.6", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "13.6.7", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "14.4", "versionType": "custom"}]unknown
AppletvOS
[{"status": "affected", "version": "0", "lessThan": "17.4", "versionType": "custom"}]unknown
ApplevisionOS
[{"status": "affected", "version": "0", "lessThan": "1.1", "versionType": "custom"}]unknown
ApplewatchOS
[{"status": "affected", "version": "0", "lessThan": "10.4", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*; end excluding 16.7.8supported
Unknown vendorUnknown product
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*; start including 17.0; end excluding 17.4supported
Unknown vendorUnknown product
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*; end excluding 16.7.8supported
Unknown vendorUnknown product
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*; start including 17.0; end excluding 17.4supported
Unknown vendorUnknown product
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*; start including 12.0; end excluding 12.7.6supported
Unknown vendorUnknown product
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*; start including 13.0; end excluding 13.6.7supported
Unknown vendorUnknown product
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*; start including 14.0; end excluding 14.4supported
Unknown vendorUnknown product
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*; end excluding 17.4supported
Unknown vendorUnknown product
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*; end excluding 1.1supported
Unknown vendorUnknown product
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*; end excluding 10.4supported

Assessments

CVSS by origin

7.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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.