CVE-2026-28929Network attack vector

Lockdown Mode bypass via reply remote-image loading

Published May 11, 2026 · Updated May 11, 2026

Information disclosure in Apple Mail Drafts allows remote attackers to load images during replies on affected iOS, iPadOS, and macOS releases. The reply path performs a faulty logic check and displays remote message images despite Lockdown Mode's remote-content restriction. Replying to an email while Lockdown Mode is enabled is the required gate; Apple has not published the specific comparison or code path.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Apple Mail Drafts allows remote attackers to load images during replies on affected iOS, iPadOS, and macOS releases. The reply path performs a faulty logic check and displays remote message images despite Lockdown Mode's remote-content restriction. Replying to an email while Lockdown Mode is enabled is the required gate; Apple has not published the specific comparison or code path.

The record

CVE
CVE-2026-28929
Published
May 11, 2026
Updated
May 11, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-1254
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 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 <18.7.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <18.7.9
Apple · macOSversion=0 <14.8.7; version=0 <15.7.7; version=0 <26.5

Published CVSS scores

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

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-1254Incorrect Comparison Logic Granularity

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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