CVE-2021-30860 Apple Multiple Products Integer Overflow
Attackers can execute arbitrary code by tricking users into opening a malicious PDF on Apple operating systems.
- Exploited in the wild
- Since 3 Nov 2021
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-30860?
CVE-2021-30860 is a high-severity vulnerability in Apple Ipados, published on 24 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Weakness: CWE-190
Which versions are affected by CVE-2021-30860?
It affects 7 products.
Products include Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Watchos, Freedesktop Poppler and 1 more.
How do I fix CVE-2021-30860?
Apply the vendor's patch. US federal agencies must fix it by 17 Nov 2021.
Is CVE-2021-30860 being exploited?
Yes. Attackers have exploited CVE-2021-30860 in the wild since at least 3 Nov 2021.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in Apple Ipados
- CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write
- 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
Sources
Also known as JLSEC-2025-195.