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NVD / CVE Program· CNA apple

CVE-2023-42886: An out-of-bounds read was addressed with improved bounds checking.

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.30% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.2, macOS Ventura 13.6.3, macOS Monterey 12.7.2. A user may be able to cause unexpected app termination or arbitrary code execution.

HighCVSS 7.8 · v3.1—No exploit No fix recorded
Published
Dec 11, 2023
Updated
Jun 17, 2026
EPSS
0.3% · 22th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-42886

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
applemacos

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apple macos12.0.0 and later · before 12.7.2
  • apple macos13.0 and later · before 13.6.3
  • apple macos14.0 and later · before 14.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apple). Independent of NVD's CPE analysis and usually ahead of it.

  • Apple macOS

    • unspecified and later · before 13.6affected
    • unspecified and later · before 12.7affected
    • unspecified and later · before 14.2affected

Same product

apple: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-31200A memory corruption issue was addressed with improved bounds checking.KEV
    75This week
  • CVE-2025-31201This issue was addressed by removing the vulnerable code.KEV
    73This week
  • CVE-2026-65400An authentication issue was addressed with improved state management.KEV
    70This week

Published before and after this one in the same product

  • ← EarlierCVE-2023-42874Dec 11, 2023 · This issue was addressed with improved state management.
    9Monitor
  • ← EarlierCVE-2023-42882Dec 11, 2023 · The issue was addressed with improved memory handling.
    31Monitor
  • Later →CVE-2023-42891Dec 11, 2023 · An authentication issue was addressed with improved state management.
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-54506366 days apartAn out-of-bounds access issue was addressed with improved bounds checking.
    39Monitor
  • CVE-2025-30458476 days apartA permissions issue was addressed with additional restrictions.
    39Monitor
  • CVE-2025-24256476 days apartThe issue was addressed with improved bounds checks.
    39Monitor
  • CVE-2025-24265476 days apartAn out-of-bounds read was addressed with improved bounds checking.
    39Monitor
  • CVE-2023-4043675 days apartThe issue was addressed with improved bounds checks.
    36Monitor
  • CVE-2025-24196476 days apartA type confusion issue was addressed with improved memory handling.
    35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2023-4039330 days apartAn authentication issue was addressed with improved state management.
    30Monitor
  • CVE-2023-4040147 days apartThe issue was addressed with additional permissions checks.
    30Monitor
  • CVE-2023-4293542 days apartAn authentication issue was addressed with improved state management.
    22Monitor
  • CVE-2023-4288972 days apartThe issue was addressed with improved checks.
    22Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records