CVE-2021-30966 Information disclosure in iOS and iPadOS
User traffic may leak to a proxy server despite PAC configurations, exposing sensitive data to unauthorized parties.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-30966?
CVE-2021-30966 is a high-severity vulnerability in Apple Ipados, published on 24 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. User traffic might unexpectedly be leaked to a proxy server despite PAC configurations.
Which versions are affected by CVE-2021-30966?
It affects 5 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Watchos.
How do I fix CVE-2021-30966?
No fix has been published for CVE-2021-30966 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-30966 being exploited?
There is no known exploitation of CVE-2021-30966 in the wild and no public exploit code.
Other vulnerabilities in Apple Ipados
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- CVE-2025-24201 Apple Multiple Products WebKit Out-of-Bounds Write
- CVE-2025-24085 Apple Multiple Products Use-After-Free
- CVE-2025-31200 Apple Multiple Products Memory Corruption
- CVE-2025-31201 Apple Multiple Products Arbitrary Read and Write