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CVE-2025-43457 is a use-after-free vulnerability in Apple Safari/WebKit web content processing. Apple states that processing maliciously crafted web content may lead to an unexpected Safari crash. The issue was addressed through improved memory management. The vulnerability is also listed as affecting WebKitGTK and WPE WebKit before 2.50.6, indicating the flaw resides in shared WebKit code used across Apple Safari and downstream WebKit-based projects. No vulnerable function or code path is identified in the provided material.
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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.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Insufficient checks allowing an app to monitor keystrokes without user permission.
A use-after-free vulnerability in web content processing associated in the advisory with unexpected Safari crashes on macOS Sonoma and macOS Sequoia.
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.