CVE-2022-46700

What it actually does

Memory corruption from insufficient input validation when processing web content, enabling arbitrary code execution.

Why it matters to the business

Users browsing malicious sites risk full device compromise, data theft, or malware installation; high ecosystem prevalence for web browsers increases exposure across many devices despite low EPSS and no KEV listing.

How an attack unfolds

Attackers deliver maliciously crafted web content via phishing or compromised sites that trigger the type confusion/memory corruption flaw in WebKit; successful exploitation grants arbitrary code execution on affected Apple platforms as noted by associated threat actor campaigns.

How to fix it

Upgrade affected products to fixed versions: Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 / iPadOS 15.7.2, iOS 16.2 / iPadOS 16.2, watchOS 9.2; for vim/vim apply commit e1d720ee69755b7e74c41bbc8ba5af0a70d1fb5f.

How to confirm the fix worked

Verify version numbers match or exceed the listed fixed releases; test with known proof-of-concept web content if available in lab environments; confirm absence of vulnerable code paths via binary analysis or patch diff.

Typical attack path

1. Identify or craft malicious web content exploiting the input validation flaw
2. Host or embed the payload on a site visited by targets
3. Victim processes the content in an affected browser or app
4. Memory corruption leads to arbitrary code execution

How to detect it

Inspect browser crash logs, WebKit process dumps, and network traffic for anomalous web content patterns; correlate with threat actor indicators associated with Apple WebKit type confusion exploits; review system logs for unexpected code execution following web browsing sessions.

What your security team should do

• Prioritize patching all Apple devices to the specified versions due to 1402 days since publication and active threat actor interest
• Monitor EPSS trend for any future increase (+10% observed)
• Block or filter untrusted web content where updates cannot be applied immediately
• Review browser logs and crash reports for memory corruption indicators