CVE-2026-28874Network attack vector

Unauthenticated remote app termination

Published Mar 25, 2026 · Updated Mar 25, 2026

Denial of service in the Baseband component of Apple iOS and iPadOS before 26.4 allows remote attackers to terminate an app. Apple states only that improved checks address the issue and has not disclosed which Baseband operation mishandles remote input. No authentication or user interaction is required, and the documented consequence is limited to unexpected app termination rather than device reboot or data compromise.

CVSS severity7.5
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Baseband component of Apple iOS and iPadOS before 26.4 allows remote attackers to terminate an app. Apple states only that improved checks address the issue and has not disclosed which Baseband operation mishandles remote input. No authentication or user interaction is required, and the documented consequence is limited to unexpected app termination rather than device reboot or data compromise.

The record

CVE
CVE-2026-28874
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-400, T1642
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <26.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <26.4

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1642Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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