SEPTEMBER 18, 2026
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Case File

CVE-2026-59984

MEDIUM · CVSS 5.5 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-25 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

OpenEXR versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable to an out-of-bounds write on ILP32 builds, which can be exploited via a specially crafted B44-compressed scanline EXR file. This vulnerability may lead to denial of service and memory corruption, posing a risk primarily to organizations in the motion picture industry that utilize these specific versions of OpenEXR. Users of affected versions should prioritize upgrading to versions 3.2.11, 3.3.13, or 3.4.14 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-59984
Severity
MEDIUM
CVSS
5.5
EPSS
0.18%

Original NVD Description

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to an out-of-bounds write. When a crafted B44-compressed scanline EXR causes the logical scratch size to truncate before allocation and uncompress_b44_impl() writes using the attacker-controlled channel width, allowing denial of service and memory corruption. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.