cve.bz

CVE-2025-64182

5.5 mediumEPSS 0.3%

Medium (5.5) in openexr openexr. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in openexr 3.2.5, 3.3.6, 3.4.3.

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.2.0 through 3.2.4, 3.3.0 through 3.3.5, and 3.4.0 through 3.4.2, a memory safety bug in the legacy OpenEXR Python adapter (the deprecated OpenEXR.InputFile wrapper) allow crashes and likely code execution when opening attacker-controlled EXR files or when passing crafted Python objects. Integer overflow and unchecked allocation in InputFile.channel() and InputFile.channels() can lead to heap overflow (32 bit) or a NULL deref (64 bit). Versions 3.2.5, 3.3.6, and 3.4.3 contain a patch for the issue.

Severity

CVSS 4.0

5.5 medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS 3.1

7.8 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.3% chance of exploitation in the next 30 days; higher than 17% of CVEs (scores of 2026-10-31)
CWE
CWE-120
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-vh63-9mqx-wmjrPyPIopenexr>=3.2.0 <3.2.53.2.5
GHSA-vh63-9mqx-wmjrPyPIopenexr>=3.3.0 <3.3.63.3.6
GHSA-vh63-9mqx-wmjrPyPIopenexr>=3.4.0 <3.4.33.4.3
PYSEC-2026-2851PyPIopenexr>=3.2.0 <3.2.5
>=3.3.0 <3.3.6
>=3.4.0 <3.4.3		3.2.5, 3.3.6, 3.4.3

References

Check your stackJSON