CVE-2026-43907

Published: Mag 14, 2026 Last Modified: Mag 15, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,3
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: high
Availability: high

Description

AI Translation Available

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 integer overflow in QueryRGBBufferSizeInternal() in DPXColorConverter.cpp leads to a heap-based out-of-bounds write when processing crafted DPX image files. The function computes buffer sizes using 32-bit signed integer arithmetic with negative multipliers (e.g., pixels * -3 * bytes for kCbYCr descriptors and pixels * -4 * bytes for kABGR descriptors), where a negative result is used as an in-band signal that no separate buffer is needed. When the pixel count is sufficiently large, the multiplication overflows INT_MIN and wraps to a small positive value. The caller in dpxinput.cpp interprets this positive value as a required buffer size, allocates an undersized heap buffer via m_decodebuf.resize(), and then writes the full image data into it via fread, resulting in a heap buffer overflow. An attacker can exploit this by crafting a DPX file that triggers the overflow, causing a denial of service (crash) or potentially arbitrary code execution through heap corruption in any application that reads pixel data using OpenImageIO. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 6 Days)

190

Integer Overflow or Wraparound

Stable
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism Alter Execution Logic Dos: Resource Consumption (Cpu)
Applicable Platforms
Languages: Not Language-Specific, C
View CWE Details
787

Out-of-bounds Write

Draft
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
Technologies: ICS/OT
View CWE Details
Application

Openimageio by Openimageio

Version Range Affected
From 3.1.4.0 (inclusive)
To 3.1.13.0 (exclusive)
cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Openimageio by Openimageio

cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Openimageio by Openimageio

Version Range Affected
To 3.0.18.0 (exclusive)
cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GH…
https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GH…