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CVE-2026-84533

MEDIUM
5.3
CVSS Score
Published: September 14, 2026 at 08:50 PM UTC
Updated: October 26, 2026 at 08:39 PM UTC
5 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A cryptographic issue was addressed with improved integrity checks. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, watchOS 27. An attacker in a privileged network position may be able to modify network traffic.

Affected

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

iPadOS· Apple
95%
v < 27.0
Affected range stops below 27, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.0, so it looks safe — our inference, not a vendor statement
iPhone OS· Apple
95%
v < 27.0
Affected range stops below 27.0, so it looks safe — our inference, not a vendor statement
macOS· Apple
95%
v < 27.0
Affected range stops below 27, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.0, so it looks safe — our inference, not a vendor statement
tvOS· Apple
95%
v < 27.0
Affected range stops below 27, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.0, so it looks safe — our inference, not a vendor statement
watchOS· Apple
95%
v < 27.0
Affected range stops below 27, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.0, 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 (4)

Release NotesVendor Advisory
Source: cverecord
https://support.apple.com/en-us/149034
Release NotesVendor Advisory
Source: cverecord
https://support.apple.com/en-us/149035
Release NotesVendor Advisory
Source: cverecord
https://support.apple.com/en-us/149036
Release NotesVendor Advisory
Source: cverecord
https://support.apple.com/en-us/149037

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.3MEDIUM[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-353

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