CVE-2023-27937

HIGH

7.8

CVSS Score

Published: May 8, 2023 at 12:00 AM UTC

Updated: June 17, 2026 at 05:46 AM UTC

5 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, macOS Big Sur 11.7.5, macOS Monterey 12.6.4, tvOS 16.4, watchOS 9.4. Parsing a maliciously crafted plist may lead to an unexpected app termination or arbitrary code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 16.4

Affected range stops below 16.4, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 16.4

Affected range stops below 16.4, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 11.7v < 11.7.5v < 12.6v < 13.312.0 ≤ v < 12.6.413.0 ≤ v < 13.3

Affected range stops below 11.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.7.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.6.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.3, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 16.4

Affected range stops below 16.4, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 9.4

Affected range stops below 9.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

Release NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213670

Release NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213674

Release NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213675

Release NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213676

Release NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213677

Release NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213678

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-190

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