CVE-2024-23256

Locked-tab disclosure during tab-group switching

Published Mar 5, 2024 · Updated Apr 2, 2026

Information disclosure in Safari Private Browsing on iOS and iPadOS before 17.4 allows attackers to briefly view locked tabs. Apple identifies faulty state management during tab-group transitions but has not disclosed the specific erroneous operation. Locked Private Browsing must be enabled, and the user must switch tab groups while an attacker can observe the screen.

CVSS severity3.3
Low
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Safari Private Browsing on iOS and iPadOS before 17.4 allows attackers to briefly view locked tabs. Apple identifies faulty state management during tab-group transitions but has not disclosed the specific erroneous operation. Locked Private Browsing must be enabled, and the user must switch tab groups while an attacker can observe the screen.

The record

CVE
CVE-2024-23256
Published
Mar 5, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
Unavailable
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <17.4

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <17.4

Published CVSS scores

2.4CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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