CVE-2026-34544OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry.
Updated under an hour ago ()
Does this affect you?
It affects openexr. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.3 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-190, CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openexr openexr openexr:openexr | from 3.2.0 before 3.2.7; from 3.3.0 before 3.3.9; from 3.4.0 before 3.4.8 | NVD |
References
- https://github.com/AcademySoftwareFoundation/openexr/commit/35e7aa35e22c1975606be86e859f31cc1fc598eepatch
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8product, release-notes
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h762-rhv3-h25vexploit, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.