High severity · published Feb 11, 2026
CVE-2026-20616
An out-of-bounds write issue was addressed with improved bounds checking
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. Processing a maliciously crafted USD file may lead to unexpected app termination.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
before 18.7.5 · source: NVD
MA
macOS · Apple
14.0 before 14.8.4; 26.0 before 26.3 · source: NVD
VI
Visionos · Apple
before 26.3 · source: NVD
In the news
VulnerabilityHigh
ZDI-26-176: Apple macOS libusd_ms Alembic File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. User interaction is required to exploit this vulnerability in that the target must receive a malicious file that is written to the local filesystem. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-20616.
Mar 10, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20616
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20616
Release Notes
https://support.apple.com/en-us/126347
Release Notes
https://support.apple.com/en-us/126348
Release Notes
https://support.apple.com/en-us/126350
Release Notes
https://support.apple.com/en-us/126353
www.zerodayinitiative.com
https://www.zerodayinitiative.com/advisories/ZDI-26-176/
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