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CVE-2023-23494

MEDIUM
5.3
CVSS Score
Published: May 8, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:37 AM UTC
2 products affected across 1 vendoriPhone OSiPadOS

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 16.4 and iPadOS 16.4. A user in a privileged network position may be able to cause a denial-of-service.

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

Remediation

No guide yet

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

Patch and advisory references

References (1)

Release NotesVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT213676

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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