CVE-2024-23246

Sandbox escape via undisclosed UIKit input validation

Published Mar 8, 2024 · Updated Apr 2, 2026

Improper input validation in UIKit allows local users to escape an app sandbox across affected Apple operating systems. Apple states only that it removed vulnerable code and has not disclosed the UIKit code path or the input operation that fails validation. Execution begins in a locally run app and requires user interaction; successful exploitation crosses the app's sandbox boundary.

CVSS severity8.6
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in UIKit allows local users to escape an app sandbox across affected Apple operating systems. Apple states only that it removed vulnerable code and has not disclosed the UIKit code path or the input operation that fails validation. Execution begins in a locally run app and requires user interaction; successful exploitation crosses the app's sandbox boundary.

The record

CVE
CVE-2024-23246
Published
Mar 8, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS
Classifications
CWE-20, T1611
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16.7 <16.7.6
  2. Affected versionversion=17.0 <17.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOSversion=16.7 <16.7.6; version=17.0 <17.4
Apple · iOS and iPadOSversion=0 <16.7.6; version=0 <17.4
Apple · visionOSversion=0 <1.1
Apple · Safariversion=0 <17.4
Apple · tvOSversion=0 <17.4
Apple · macOSversion=0 <14.4; version=14.0 <14.4
WebKitGTK · WebKitGTKversion=0 <2.45.2
Apple · iPadOSversion=16.7 <16.7.6; version=17.0 <17.4
Apple · watchOSversion=0 <10.4

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
8.6NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1611Escape to Host

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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