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CVE-2026-43904

Openimageio buffer overflow

7.8 HIGHPublic exploitEPSS 0.18%
  1. Published14 May 2026

Description

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, softimageinput.cpp:469 (mixed RLE) and :345 (pure RLE) do not clamp the run length to remaining scanline width before writing pixels. The raw packet path (line 403) correctly clamps with std::min, but RLE paths skip this check. A crafted .pic file causes heap overflow up to 65535 bytes. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Openimageio≥ 3.1.4.0 < 3.1.13.0 · < 3.0.18.0

Remediation

Fixed in
Openimageio≥ 3.1.13.0

References

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Frequently asked

Is CVE-2026-43904 being actively exploited?

CVE-2026-43904 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.18%.

How severe is CVE-2026-43904?

CVE-2026-43904 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 0.18% probability of exploitation.

Which products are affected by CVE-2026-43904?

Affected products include Openimageio.

How do I fix CVE-2026-43904?

Upgrade affected software to a fixed version, for example Openimageio 3.1.13.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-43904 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.