Description
Academy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Academy Software Foundation OpenEXR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of EXR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27948.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Academy Software Foundation | OpenEXR | 3.4.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openexr | 3.4.6+ds-1 | — |
| Debian 13 | openexr | No fix yet | — |
| Debian 12 | openexr | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | openexr | No fix yet | — |
| Ubuntu 25.10 | openexr | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | openexr | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | openexr | 3.2.2-160000.4.1 | SUSE-SU-2025:21189-1 |
| SLES 16.0 | openexr | 3.2.2-160000.4.1 | SUSE-SU-2025:21189-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openexr | 3.4.3-2.1 | openSUSE-SU-2025:15759-1 |
| openSUSE Leap 16.0 | openexr | 3.2.2-160000.4.1 | openSUSE-SU-2025:20148-1 |
Advisories 3
- openSUSE-SU-2025:20148-1 Security update for openexr SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15759-1 libIex-3_4-33-3.4.3-2.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21189-1 Security update for openexr SUSE / openSUSE Security Updates · Mar 23, 2026