CVE-2020-9829 Denial of service in iOS
Attackers can cause application denial of service by sending maliciously crafted text messages to Apple iOS devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-9829?
CVE-2020-9829 is a medium-severity denial of service vulnerability in Apple Ipados, published on 9 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5. Processing a maliciously crafted text message may lead to application denial of service.
Weakness: CWE-20
Which versions are affected by CVE-2020-9829?
It affects 4 products.
Products include Apple Ipados, Apple Iphone Os, Apple Tvos, Apple Watchos.
How do I fix CVE-2020-9829?
No fix has been published for CVE-2020-9829 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-9829 being exploited?
There is no known exploitation of CVE-2020-9829 in the wild and no public exploit code.
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 GHSA-8x8f-xgfw-xc2f.