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CVE Record

CVE-2023-32409: The issue was addressed with improved bounds checks.

The issue was addressed with improved bounds checks. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.8 and iPadOS 15.7.8, Safari 16.5, iOS 16.5 and iPadOS 16.5. A remote attacker may be able to break out of Web Content sandbox. Apple is aware of a report that this issue may have been actively exploited.

HighCVSS 8.6Known exploitedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-32409 is an Apple sandbox escape issue. A remote attacker may be able to break out of the Web Content sandbox, weakening a key browser and app isolation boundary. Apple says it may have been actively exploited, and CISA lists it in KEV.

Executive priority

Treat this as urgent patching for Apple fleets because it affects sandbox isolation and has KEV-backed exploitation concern. It is not enough to rely on general browser hardening; confirm fixed Apple releases are deployed.

Technical view

Apple describes this as a bounds-checking flaw fixed with improved bounds checks. The CVSS 3.1 vector is 8.6 high: network attack surface, low complexity, no privileges, scope change, and high integrity impact. The sources do not identify a CWE or complete vulnerable version ranges.

Likely exposure

Exposure is likely on Apple endpoints, Safari installations, Apple TV, and Apple Watch devices that have not reached the fixed versions named by Apple. The bundle lists affected product families but not exact vulnerable build ranges, so inventory should compare installed versions against Apple’s fixed releases.

Exploitation context

Active exploitation is supported by Apple’s statement that it was aware of a report of possible active exploitation and by CISA KEV inclusion. The public bundle does not provide exploit details, targeting patterns, or indicators of compromise.

Researcher notes

The available sources identify the impact, fixed releases, CVSS vector, and exploitation signal, but not root-cause detail, affected build ranges, exploit chain context, or IOCs. Avoid assuming WebKit-specific behavior beyond Apple’s Web Content sandbox wording.

Mitigation direction

  • Update iOS and iPadOS to 16.5 or 15.7.8 where applicable.
  • Update macOS Ventura to 13.4 and Safari to 16.5.
  • Update tvOS to 16.5 and watchOS to 9.5.
  • Prioritize internet-facing and high-risk user Apple devices first.
  • Review Apple guidance for any product-specific follow-up actions.

Validation and detection

  • Inventory Apple device and Safari versions across managed endpoints.
  • Confirm all applicable systems meet or exceed Apple’s fixed versions.
  • Check vulnerability management records for CVE-2023-32409 closure.
  • Verify MDM compliance policies enforce the fixed releases.
  • Review CISA KEV tracking for mandated remediation status.
Prepared
Confidence
high
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

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CVE-2023-32409 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.6 (3.1)
Known Exploited
Yes
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
8Source links

CISA KEV status

Status
Known exploited
Source
CISA / ADP
Date added
Not provided

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
8.6CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N3.94Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.6High
CVSS 3.1 vector shape for CVE-2023-32409Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ApplemacOSunspecifiedListed
AppleSafariunspecifiedListed
ApplewatchOSunspecifiedListed
AppleiOS and iPadOSunspecifiedListed
AppleiOS and iPadOSunspecifiedListed
AppletvOSunspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.