SB2026092924 - Heap-based buffer overflow in OpenEXR

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Main Vulnerability Database SB2026092924

SB2026092924 - Heap-based buffer overflow in OpenEXR

Published: September 29, 2026 Updated: September 30, 2026

Security Bulletin ID SB2026092924
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Heap-based buffer overflow (CVE-ID: N/A)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service or modify adjacent heap memory.

The vulnerability exists due to a heap-based buffer overflow in the OpenEXRCore ZSTD deep-scanline decoder when processing a crafted deep-scanline EXR file with ZSTD compression. A remote attacker can supply a crafted EXR file with a declared unpacked size smaller than the sample-derived segment length to cause a denial of service or modify adjacent heap memory.

User interaction is required to process the crafted EXR file.


Remediation

Install update from vendor's website.

References