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CVE-2026-64784 is an out-of-bounds access vulnerability in WebKit affecting Apple platforms including iOS, iPadOS, and macOS. The flaw is triggered when Safari or another WebKit-based context processes maliciously crafted web content. Apple states the issue was addressed through improved bounds checking. Successful triggering can cause Safari to crash unexpectedly, indicating a denial-of-service condition in the browser process.
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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.
If you can’t patch tonight, do this now.
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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A WebKit out-of-bounds access vulnerability that could cause Safari to crash when processing crafted web content.
An out-of-bounds access vulnerability in Apple web content processing that may cause Safari to crash.
An out-of-bounds access vulnerability in macOS Tahoe that may cause Safari to crash when processing malicious web content.
An out-of-bounds access vulnerability in web content processing that may cause Safari to crash on affected Apple devices.
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.