EUVD-2026-65589Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Malicious file is network-deliverable (AV:N), conversion flag path is low complexity (AC:L), no credentials needed (PR:N), but user must invoke exrmetrics explicitly (UI:R); no confidentiality loss confirmed.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
4DescriptionCVE.org
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 are vulnerable to a heap out-of-bounds write when exrmetrics reads a crafted deep scanline EXR. This occurs with pixel conversion options such as --pixelmode float or --bench because DeepSlice requests FLOAT output while the backing sample buffers are allocated using the input HALF element size. The issue is fixed in versions 3.3.13 and 3.4.14.
AnalysisAI
Heap out-of-bounds write in OpenEXR 3.3.0-3.3.12 and 3.4.0-3.4.13 allows an attacker who can supply a crafted deep scanline EXR file to crash the exrmetrics utility or potentially execute arbitrary code when pixel conversion options are active. The flaw arises from a HALF/FLOAT element-size mismatch: sample buffers are allocated for 2-byte HALF input while DeepSlice writes 4-byte FLOAT output, overrunning the heap. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three concurrent conditions: (1) the target must invoke the exrmetrics command-line utility - not a passive viewer or renderer - against the supplied file; (2) a pixel conversion flag (--pixelmode float or --bench) must be present in the invocation; and (3) the EXR file must use the deep scanline format. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.1 score (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H) reflects a network-deliverable, low-complexity attack gated only by user interaction. … 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 to OpenEXR 3.3.13 or 3.4.14, which contain the fix applied in commits 46e70220dc91 and 7e772dd704b9 (https://github.com/AcademySoftwareFoundation/openexr/commit/46e70220dc91dbc1341fac4671704e970b450585, https://github.com/AcademySoftwareFoundation/openexr/commit/7e772dd704b9b5d6dc2564647d89f7813f608e94). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory systems running vulnerable OpenEXR versions (3.3.0-3.3.12 or 3.4.0-3.4.13) and disable non-essential access to exrmetrics. …
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makeMultiView.cpp in exrmultiview in OpenEXR 2.3.0 has an out-of-bounds write, leading to an assertion failure or possib
Out-of-bounds heap write in OpenEXR's CompositeDeepScanLine::readPixels lets a crafted multi-part deep-scanline EXR file
In OpenEXR 2.2.0, a crafted image causes a heap-based buffer over-read in the hufDecode function in IlmImf/ImfHuf.cpp du
OpenEXR versions 3.3.0-3.3.6 and 3.4.0-3.4.4 are vulnerable to a heap buffer overflow in file parsing due to improper in
There's a flaw in OpenEXR's ImfDeepScanLineInputFile functionality in versions prior to 3.0.5. Rated medium severity (CV
A head-based buffer overflow exists in Academy Software Foundation OpenEXR 2.3.0 in writeTileData in ImfTiledOutputFile.
A Null Pointer Deference issue exists in Academy Software Foundation OpenEXR 2.3.0 in generatePreview in makePreview.cpp
A heap-based buffer overflow vulnerability exists in Academy Software Foundation OpenEXR 2.3.0 in chunkOffsetReconstruct
An issue was discovered in OpenEXR before 2.4.1. Rated medium severity (CVSS 5.5), this vulnerability is no authenticati
An issue was discovered in OpenEXR before 2.4.1. Rated medium severity (CVSS 5.5), this vulnerability is no authenticati
An issue was discovered in OpenEXR before 2.4.1. Rated medium severity (CVSS 5.5), this vulnerability is no authenticati
An issue was discovered in OpenEXR before 2.4.1. Rated medium severity (CVSS 5.5), this vulnerability is no authenticati
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Heap Overflow
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External POC / Exploit Code
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