Release record
Release notes
Editorial synthesis with inline references and a source ledger when citations are available.
iOS 18.3.1 was a targeted security update. Apple fixed an authorization weakness that could let a physical attack disable USB Restricted Mode on a locked device and said the issue may have been used in a highly targeted, sophisticated attack.[1]
Apple later added a Messages entry for malicious photos or videos shared through an iCloud Link, with the same targeted-exploitation warning. The June addition is recorded as a later bulletin update, not as proof that the item appeared in the original February notice.[2]
Source ledger
Sources are linked to the claims they support. Publication and access dates are shown when available.
Apple Support · 2026-07-29 · Accessibility; CVE-2025-24200
Apple Support · 2026-07-29 · Messages; CVE-2025-43200; entry added June 11, 2025
Apple Support · 2026-07-29 · iOS 18.3.1
Apple Support · 2026-07-29 · Released February 10, 2025
Documented & observed
Source-linked features, fixes, known issues, removals, and community-observed behavior recorded across this version’s appearances and verified builds.
Release changes
Features, fixes, removals, and regressions first observed in this release record.
security · fixed
Apple corrected a physical-attack path that could disable USB Restricted Mode on a locked device and said it may have been used against specific targeted individuals.
Recorded at Public
security · fixed
A later addition to Apple’s bulletin documented a fix for processing a maliciously crafted photo or video shared via an iCloud Link and carried a targeted-exploitation warning.
Recorded at Public
Milestones
Every recorded channel appearance in chronological order. Open an appearance for any available build, scope, notes, and sources.
Public release
The public iOS 18.3.1 release addressed two vulnerabilities associated with sophisticated attacks against specific targeted individuals; one bulletin entry was added later.
Historical context
Pace, intervals, and duration compared with earlier releases on the same platform.