CVE-2026-88384: n/a
OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
AI Analysis
Technical Summary
The vulnerability in OpenEXR 3.4.14 involves the C++ attribute parsing path where an EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor then calls memcpy() with this NULL pointer without checking the zero-size condition, causing undefined behavior and process termination (denial of service).
Potential Impact
An attacker can cause the OpenEXR parser to crash by providing a specially crafted EXR file, resulting in denial of service. There is no indication of code execution or data corruption beyond process termination.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted EXR files or implement input validation to detect and reject files with unknown-type attributes having zero dataSize.
CVE-2026-88384: n/a
Description
OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in OpenEXR 3.4.14 involves the C++ attribute parsing path where an EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor then calls memcpy() with this NULL pointer without checking the zero-size condition, causing undefined behavior and process termination (denial of service).
Potential Impact
An attacker can cause the OpenEXR parser to crash by providing a specially crafted EXR file, resulting in denial of service. There is no indication of code execution or data corruption beyond process termination.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted EXR files or implement input validation to detect and reject files with unknown-type attributes having zero dataSize.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-09-10T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6ab550d2f7a7c541068cffba
Added to database: 09/24/2026, 16:33:22 UTC
Last enriched: 09/24/2026, 16:50:37 UTC
Last updated: 09/25/2026, 03:04:46 UTC
Views: 7
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