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CVE-2025-43447 is a memory-handling vulnerability in Apple operating systems that was fixed in iOS 26.1, iPadOS 26.1, watchOS 26.1, macOS Tahoe 26.1, and visionOS 26.1. According to Apple, a local app may be able to cause unexpected system termination or corrupt kernel memory. The issue was addressed with improved memory handling. Based on the available advisory text, this is a local memory corruption flaw affecting kernel memory, but Apple has not publicly provided further technical detail about the specific vulnerable component or function.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.