Apple Multiple Products Memory Corruption Vulnerability
A memory corruption issue was addressed with improved bounds checking. This issue is fixed in iOS 18.4.1 and iPadOS 18.4.1, macOS Sequoia 15.4.1, tvOS 18.4.1, visionOS 2.4.1, watchOS 11.5. 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 specif
What happened
A memory corruption issue was addressed with improved bounds checking. This issue is fixed in iOS 18.4.1 and iPadOS 18.4.1, macOS Sequoia 15.4.1, tvOS 18.4.1, visionOS 2.4.1, watchOS 11.5. 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 versions of iOS released before iOS 18.4.1.
CISA lists it as exploited, added 17 Apr 2025.
Does it affect you
Names Apple macOS. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
support.apple.com - Follow the vendor advisory for the fixed release and any interim mitigation.
support.apple.com - Follow the vendor advisory for the fixed release and any interim mitigation.
support.apple.com - Follow the vendor advisory for the fixed release and any interim mitigation.
support.apple.com - Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
cisa.gov
CISA’s notes for this entry:
Affected, as published to NVD
- macos
- Apple macOS: 15.0 up to the fix in 15.4.1
The record
- NVD status
- Analyzed
- Published
- 16 Apr 2025, last modified 17 Jun 2026 (NVD)
- Severity
- CVSS 3.1 base score 9.8, Critical — computed here from the vector; NVD states 9.8.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 17 Apr 2025; federal remediation due 08 May 2025. CISA entry
- Exploit probability
- EPSS 20.9%, 98th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Apple · Multiple Products (CISA)
References on the NVD record
- support.apple.com/en-us/122282Release NotesVendor Advisory
- support.apple.com/en-us/122400Release NotesVendor Advisory
- support.apple.com/en-us/122401Release NotesVendor Advisory
- support.apple.com/en-us/122402Release NotesVendor Advisory
- support.apple.com/en-us/122722Release NotesVendor Advisory
- seclists.org/fulldisclosure/2025/Apr/26Mailing ListThird Party Advisory
- seclists.org/fulldisclosure/2025/Jun/14Mailing ListThird Party Advisory
- seclists.org/fulldisclosure/2025/May/10Mailing ListThird Party Advisory
- seclists.org/fulldisclosure/2025/Oct/0Mailing ListThird Party Advisory
- seclists.org/fulldisclosure/2025/Oct/4Mailing ListThird Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31200US Government Resource
- blog.noahhw.dev/posts/cve-2025-31200/Broken LinkExploit
- github.com/JGoyd/iOS-Attack-Chain-CVE-2025-31200-CVE-2025-31201/blob/main/Remote%20Crypto%20Attack%20Chain%20.mdBroken LinkExploit
- news.ycombinator.com/item?id=44161894Issue Tracking
- github.com/cisagov/vulnrichment/issues/200Issue Tracking
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.