CVE-2026-28875Network attack vector

Remote service interruption via Baseband buffer overflow

Published Mar 25, 2026 · Updated Mar 25, 2026

Buffer overflow in Apple iOS before 26.4 on iPhone 16e allows remote attackers to interrupt service through the Baseband component. Apple reports that improved bounds checking corrects the Baseband overflow but has not disclosed the input path, buffer, or triggering message. Exploitation requires remote reachability to the device's baseband and can deny service; no confidentiality or integrity impact is reported.

CVSS severity7.5
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Apple iOS before 26.4 on iPhone 16e allows remote attackers to interrupt service through the Baseband component. Apple reports that improved bounds checking corrects the Baseband overflow but has not disclosed the input path, buffer, or triggering message. Exploitation requires remote reachability to the device's baseband and can deny service; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2026-28875
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-120, T1464
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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1464Network 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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