EUVD-2026-83120Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Local crafted-file parsing needing a user to open the image (AV:L/UI:R), no auth (PR:N); heap over-read leaks limited adjacent data (C:L) and crashes the process (A:H), no integrity impact.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
2DescriptionCVE.org
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, An uncompressed 16-bit iff image with a z-buffer makes iffinput::readimg() allocate a temporary scanline from m_header.rgba_count but copy from it using m_header.pixel_bytes(), whose stride also includes z-buffer bytes. the oversized memcpy reads beyond the temporary heap buffer and copies adjacent memory into the output image, resulting in a crash or disclosure of adjacent heap data. The affected implementation is identified by src/iff.imageio/iffinput.cpp, IffInput::readimg(), m_header.rgba_count, and m_header.pixel_bytes(), which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1.
AnalysisAI
Heap out-of-bounds read in OpenImageIO's IFF image reader (src/iff.imageio/iffinput.cpp, IffInput::readimg()) affects all releases prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, allowing a caller that opens a crafted uncompressed 16-bit IFF file containing a z-buffer channel to trigger a crash or leak adjacent heap contents into the decoded image output. The flaw is an allocation/stride mismatch: the temporary scanline buffer is sized from m_header.rgba_count while the subsequent memcpy uses m_header.pixel_bytes(), whose stride also counts z-buffer bytes, producing an oversized copy. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target to parse a specifically malformed IFF image through OpenImageIO's iff.imageio reader: an UNCOMPRESSED 16-bit IFF file that INCLUDES a z-buffer channel, which causes rgba_count-sized allocation to mismatch the pixel_bytes() copy stride in IffInput::readimg(). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but low-urgency memory-safety issue best characterized as a moderate-severity local vulnerability, not a network-facing emergency. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade OpenImageIO to 3.0.20.0, 3.1.15.0, or 3.2.0.3-beta1 (or any later release on the corresponding branch) - vendor-released patches per the advisory at https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-hjfv-gvxc-qgvh; downstream applications that embed OpenImageIO must be rebuilt or relinked against a fixed version. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Openimageio
View allBuffer Overflow vulnerability in OpenImageIO oiio v.2.4.12.0 allows a remote attacker to execute arbitrary code and caus
A code execution vulnerability exists in the DDS scanline parsing functionality of OpenImageIO Project OpenImageIO v2.4.
An out-of-bounds write vulnerability exists in the OpenImageIO::add_exif_item_to_spec functionality of OpenImageIO Proje
A heap based buffer overflow vulnerability exists in the PSD thumbnail resource parsing code of OpenImageIO 2.3.19.0. Ra
A heap based buffer overflow vulnerability exists in tile decoding code of TIFF image parser in OpenImageIO master-branc
A heap out-of-bounds write vulnerability exists in the way OpenImageIO v2.3.19.0 processes RLE encoded BMP images. Rated
A heap out of bounds read vulnerability exists in the handling of IPTC data while parsing TIFF images in OpenImageIO v2.
An issue in OpenImageIO oiio v.2.4.12.0 allows a remote attacker to execute arbitrary code and cause a denial of service
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO
Multiple code execution vulnerabilities exist in the IFFOutput::close() functionality of OpenImageIO Project OpenImageIO
Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today