OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from &input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
Metrics
Affected Vendors & Products
References
History
Fri, 15 May 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openimageio
Openimageio openimageio |
|
| CPEs | cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:* cpe:2.3:a:openimageio:openimageio:3.2.0.0:dev:*:*:*:*:*:* cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev:*:*:*:*:*:* |
|
| Vendors & Products |
Openimageio
Openimageio openimageio |
Thu, 14 May 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 14 May 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from &input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0. | |
| Title | OpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds read/write in DPX ABGR decoder | |
| Weaknesses | CWE-125 CWE-190 CWE-787 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-14T19:49:59.966Z
Reserved: 2026-05-04T16:11:33.086Z
Link: CVE-2026-43909
Updated: 2026-05-14T19:37:22.736Z
Status : Analyzed
Published: 2026-05-14T20:17:07.063
Modified: 2026-05-15T18:07:20.507
Link: CVE-2026-43909
No data.
OpenCVE Enrichment
Updated: 2026-05-14T20:45:28Z