Heap-based Buffer Overflow in Apple Model I/O USD importMeshes
CVE-2025-43385 is a memory corruption vulnerability in Apple’s Model I/O / USD parsing functionality, described by Apple as an out-of-bounds access issue fixed with improved bounds checking. Third-party reporting further indicates the flaw exists in the USD library’s importMeshes functionality and is caused by insufficient validation of the length of user-supplied data before copying it into a heap-based buffer. A remote attacker can trigger the issue by supplying a maliciously crafted media or USD-containing file to a vulnerable application or component that processes it. Apple states the issue affects multiple platforms, including iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Tahoe 26.1, tvOS 26.1, and visionOS 26.1.
Are you exposed to this one?
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Out-of-bounds access in media processing leading to crash or process memory corruption.
An out-of-bounds access vulnerability in macOS Sequoia media file processing that may cause app termination or corrupt process memory.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.