CVE-2020-36328 Memory corruption in libwebp
A heap-based buffer overflow in libwebp allows attackers to execute arbitrary code or cause denial of service via crafted images.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-36328?
CVE-2020-36328 is a critical memory corruption vulnerability in Apple Ipados, published on 21 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Weakness: CWE-787
Which versions are affected by CVE-2020-36328?
It affects 6 products.
Products include Apple Ipados, Apple Iphone Os, Debian Debian Linux, Netapp Ontap Select Deploy Administration Utility, Redhat Enterprise Linux, Webmproject Libwebp.
How do I fix CVE-2020-36328?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-36328 being exploited?
There is no known exploitation of CVE-2020-36328 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 CLSA-2025-1758615308, CLSA-2025-1758645375, DEBIAN-CVE-2020-36328, GHSA-jxwm-333p-5cwx, UBUNTU-CVE-2020-36328.