CVE-2023-27949

HIGH

7.8

CVSS Score

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

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

3 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, iOS 15.7.4 and iPadOS 15.7.4. Processing a maliciously crafted file may lead to 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 < 15.7v < 15.7.4

Affected range stops below 15.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.7.4, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 15.7.4

Affected range stops below 15.7.4, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 12.6v < 13.312.0 ≤ v < 12.6.413.0 ≤ v < 13.3

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

Remediation

No guide yet

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

Patch and advisory references

References (3)

Vendor Advisory

Source: [email protected]

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

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213673

Vendor Advisory

Source: [email protected]

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

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-125

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