CVE-2026-43909— OpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds read/write in DPX ABGR decoder
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AcademySoftwareFoundation | OpenImageIO | < 3.0.18.0 | affected |
>= 3.1.4.0-beta, < 3.1.13.0 | affected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-43909
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
OpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds read/write in DPX ABGR decoder
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenImageIO 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenImageIO是OpenImageIO开源的一个图像处理库。具有易于使用的界面和大量受支持的图像格式。 OpenImageIO 3.0.18.0之前版本和3.1.13.0之前版本存在缓冲区错误漏洞，该漏洞源于SwapRGBBytes函数中循环索引表达式i*4存在有符号32位整数溢出，导致处理大尺寸kABGR DPX图像时计算负指针偏移，造成越界读取和写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| AcademySoftwareFoundation | OpenImageIO | < 3.0.18.0 | - |
II. Public POCs for CVE-2026-43909
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-43909
请登录查看更多情报信息。
Same Patch Batch · AcademySoftwareFoundation · 2026-05-14 · 8 CVEs total
| CVE-2026-43908 | 8.8 HIGH | OpenImageIO: Signed integer overflow in ConvertCbYCrYToRGB leads to heap out-of-bounds wri |
| CVE-2026-43907 | 8.3 HIGH | OpenImageIO: Integer overflow in QueryRGBBufferSizeInternal leads to heap out-of-bounds wr |
| CVE-2026-43996 | 5.5 MEDIUM | OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds rea |
| CVE-2026-43903 | OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSERT bounds checks are no-ops in | |
| CVE-2026-43906 | OpenImageIO: HEIF Heap overflow | |
| CVE-2026-43904 | OpenImageIO: Softimage PIC RLE decoder heap buffer overflow — longCount not clamped to ima | |
| CVE-2026-43905 | OpenImageIO: JPEG2000 (OpenJPH) signed integer overflow in buffer allocation |
IV. Related Vulnerabilities
Same product: OpenImageIO
- CVE-2026-43903
OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSE - CVE-2026-43904
OpenImageIO: Softimage PIC RLE decoder heap buffer overflow - CVE-2026-43905
OpenImageIO: JPEG2000 (OpenJPH) signed integer overflow in b - CVE-2026-43996
OpenImageIO: Integer wraparound in bounds check of decode_pi - CVE-2026-43907
OpenImageIO: Integer overflow in QueryRGBBufferSizeInternal
Same vendor: AcademySoftwareFoundation
- CVE-2026-43903
OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSE - CVE-2026-43904
OpenImageIO: Softimage PIC RLE decoder heap buffer overflow - CVE-2026-43905
OpenImageIO: JPEG2000 (OpenJPH) signed integer overflow in b - CVE-2026-43996
OpenImageIO: Integer wraparound in bounds check of decode_pi - CVE-2026-43907
OpenImageIO: Integer overflow in QueryRGBBufferSizeInternal
V. Comments for CVE-2026-43909
No comments yet