CVE-2026-34544 — OpenEXR: integer overflow to OOB write in uncompress_b44_impl()
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before ver…
Published: 2026-04-01 · CVSS: 8.4 · CVSS 4.0
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.8, a crafted B44 or B44A EXR file can cause an out-of-bounds write in any application that decodes it via exr_decoding_run(). Consequences range from immediate crash (most likely) to corruption of adjacent heap allocations (layout-dependent). This issue has been patched in version 3.4.8.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7