CVE-2025-48072 OpenEXR's Inaccurate Pointer Arithmetic can Cause an Out of Bounds Heap
A heap-based buffer overflow in OpenEXR allows attackers to execute arbitrary code or cause denial of service via malicious EXR files.
- Exploited in the wild
- Not known
- 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-2025-48072?
CVE-2025-48072 is a medium-severity memory corruption vulnerability in Openexr Openexr, published on 31 Jul 2025. 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
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. Version 3.3.2 is vulnerable to a heap-based buffer overflow during a read operation due to bad pointer math when decompressing DWAA-packed scan-line EXR files with a maliciously forged chunk. This is fixed in version 3.3.3.
Weakness: CWE-125
Which versions are affected by CVE-2025-48072?
3 open source packages ship an affected version, including openexr and OpenEXR. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
openexr PyPI | From 3.3.2 | 3.3.3 |
openexr PyPI | From 3.3.2 | 3.3.3 |
OpenEXR PyPI | From 3.3.2 | 3.3.3 |
Products include Openexr Openexr.
How do I fix CVE-2025-48072?
Upgrade openexr to 3.3.3 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-48072 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-48072 exists.
Other vulnerabilities in Openexr Openexr
- CVE-2023-5841 OpenEXR Heap Overflow in Scanline Deep Data Parsing
- CVE-2026-41142 OpenEXR is Vulnerable to Integer overflow in ImageChannel::resize leads to heap OOB write via OpenEXRUtil public API
- CVE-2026-42216 OpenEXR: Out-of-bounds read in `IDManifest::init()` during prefix expansion
- CVE-2017-9111 OpenEXR invalid write
- CVE-2017-9113 Memory corruption in n/a
Sources
Also known as GHSA-4r7w-q3jg-ff43, PYSEC-2026-1746, UBUNTU-CVE-2025-48072.