What tvOS 18.4.1 Fixes
tvOS 18.4.1, released April 16, 2025, fixes 2 vulnerabilities in 2 parts of the system, according to Apple's security advisory.
Apple says 2 of these flaws — CVE-2025-31200, CVE-2025-31201 — may already have been exploited. That makes tvOS 18.4.1 an update to install now rather than at the weekend.
It has since been superseded: the newest security release for tvOS 18 is tvOS 18.6, from July 29, 2025, which includes these fixes.
| What an attacker could do | Fixes |
|---|---|
| Run code | 1 |
| Private data or protections bypassed | 1 |
Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.
Exploited Before the Fix
Apple flags a fix as possibly exploited when it has a credible report that the flaw was used against real people before the patch. These are the reason to update today.
-
CoreAudio Exploited
Processing an audio stream in a maliciously crafted media file may result in code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on iOS.
A memory corruption issue was addressed with improved bounds checking.
CVE-2025-31200 -
RPAC Exploited
An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on iOS.
This issue was addressed by removing the vulnerable code.
CVE-2025-31201
Which Devices Get tvOS 18.4.1
Apple lists tvOS 18.4.1 for: Apple TV HD and Apple TV 4K (all models).
How to Install tvOS 18.4.1
On the Apple TV, open Settings → System → Software Updates.
Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past tvOS 18.4.1 there is nothing to do.
Every Fix in tvOS 18.4.1
The rest of Apple's advisory — every fix not already listed above, the most serious kinds first. Each entry is the part of the system affected, Apple's description of the impact and the fix, and the CVE ID.
tvOS 18 Security Release History
tvOS 18.4.1 in context: the security releases Apple has published for tvOS 18, newest first, with the number of fixes each carried.
The Same Fixes Elsewhere
Apple ships most fixes to every platform that shares the code, and to older versions still under support. These releases close at least one of the same CVEs:
Frequently Asked Questions
What does tvOS 18.4.1 fix?
2 security vulnerabilities in 2 parts of the system, from Apple's advisory of April 16, 2025. 1 could have let an attacker run code.
Was anything fixed in tvOS 18.4.1 exploited?
Yes. Apple says CVE-2025-31200, CVE-2025-31201 may have been exploited before the fix. Install it now.
Which devices can install tvOS 18.4.1?
Apple TV HD and Apple TV 4K (all models).
Is tvOS 18.4.1 the latest security update?
No. tvOS 18.6, from July 29, 2025, is newer and includes these fixes.
Source: About the security content of tvOS 18.4.1, Apple. Rechecked automatically while Apple is still adding entries.