OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, a crafted tiled EXR can trigger a heap out-of-bounds write on 32-bit/ILP32 builds when read through the public TiledRgbaInputFile RGBA API. The file uses a small 40x40 dataWindow but a 65537x65537 tile size. On ILP32, the Array2D<Rgba> tile-conversion buffer size calculation overflows, allocates a much smaller heap buffer, and tile decode writes past that allocation. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade openexr-libsUpgrade openexr-devel | Oct 14, 2026 | Oct 13, 2026 |
| Alpine Linux | — | Upgrade openexr | Sep 2, 2026 | Aug 25, 2026 |
| Freebsd | — | Upgrade openexr | Aug 17, 2026 | Aug 14, 2026 |
| Oracle_linux | — | Upgrade openexr-libsUpgrade openexr-devel | Oct 22, 2026 | Aug 25, 2026 |
| Redhat_linux | — | Upgrade openexr-libs-debuginfoUpgrade openexr-debuginfoUpgrade openexr-debugsourceUpgrade openexr-develUpgrade openexr-libs | Sep 21, 2026 | Aug 25, 2026 |
| Rocky_linux | — | Upgrade openexr-libs-debuginfoUpgrade openexr-develUpgrade openexr-libsUpgrade openexr-debugsourceUpgrade openexr-debuginfo | Oct 16, 2026 | Oct 14, 2026 |
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