Security readout for executives and security teams
Plain-English summary
CVE-2024-54542 is an Apple authentication flaw where Private Browsing tabs could be opened without the expected authentication. For organizations, the main concern is exposure of sensitive browsing activity on Apple devices. Apple says the issue is fixed in Safari 18.2, iOS/iPadOS 18.2, macOS Sequoia 15.2, and watchOS 11.2.
Executive priority
Treat this as a priority Apple patching issue because it can expose private browsing content without authentication. Urgency is highest for shared devices, executive endpoints, regulated environments, and systems where browser privacy boundaries protect sensitive activity.
Technical view
The CVE describes a CWE-862 authentication weakness addressed by improved state management. The published CVSS 3.1 score is 9.1, with high confidentiality impact and high availability impact. Public sources do not provide vulnerable build ranges beyond naming fixed Apple releases.
Likely exposure
Exposure is likely on Apple devices or Safari installations that have not been updated to the listed fixed releases. The record includes Safari, iOS and iPadOS, macOS, and watchOS, but the source bundle does not define precise vulnerable version ranges.
Exploitation context
No active exploitation is established in the provided sources. The CVE is not marked as CISA KEV. The sources describe the authentication failure and fixed releases, but do not provide exploit details or evidence of real-world abuse.
Researcher notes
The public description is narrow: Private Browsing tabs may be accessed without authentication. The CVSS vector indicates network attackability, but the provided sources do not explain the attack path. Avoid assuming vulnerable versions, exploitability conditions, or compensating controls beyond Apple’s fixed releases.
Mitigation direction
- Update Safari to 18.2 or later where applicable.
- Update iOS and iPadOS devices to 18.2 or later.
- Update macOS Sequoia systems to 15.2 or later.
- Update watchOS devices to 11.2 or later.
- Check Apple security guidance for product-specific update availability.
Validation and detection
- Inventory Apple endpoints and record OS and Safari versions.
- Confirm devices meet or exceed the fixed versions listed by Apple.
- Review MDM compliance for delayed or failed Apple updates.
- Check whether shared or high-risk devices used Private Browsing before patching.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-54542 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H3.95.2CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/121837CVE reference, apple
- https://support.apple.com/en-us/121839CVE reference, apple
- https://support.apple.com/en-us/121843CVE reference, apple
- https://support.apple.com/en-us/121846CVE reference, apple
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.