CVE-2026-43908Public exploitNetwork attack vector

Process crash via wrapped pixel-loop offset

Published May 14, 2026 · Updated May 14, 2026

Heap out-of-bounds write in OpenImageIO before 3.0.18.0 or 3.1.4.0-beta through 3.1.12.0 allows attackers to crash image-processing applications. ConvertCbYCrYToRGB() multiplies a signed 32-bit pixel-loop index by three and uses the wrapped negative result as an output-buffer pointer offset while decoding a crafted DPX 4:2:2 image. Exploitation requires an application or user to read pixel data from an extremely large crafted file; the demonstrated consequence is an unconditional process crash after roughly 715 million pixels.

CVSS severity8.8
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap out-of-bounds write in OpenImageIO before 3.0.18.0 or 3.1.4.0-beta through 3.1.12.0 allows attackers to crash image-processing applications. ConvertCbYCrYToRGB() multiplies a signed 32-bit pixel-loop index by three and uses the wrapped negative result as an output-buffer pointer offset while decoding a crafted DPX 4:2:2 image. Exploitation requires an application or user to read pixel data from an extremely large crafted file; the demonstrated consequence is an unconditional process crash after roughly 715 million pixels.

The record

CVE
CVE-2026-43908
Published
May 14, 2026
Updated
May 14, 2026
Vendor
Academy Software Foundation
Product
OpenImageIO
Classifications
CWE-190, CWE-787, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 14, 2026CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.0.18.0
  2. Affected versionversion=>= 3.1.4.0-beta, < 3.1.13.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Academy Software Foundation · OpenImageIOversion=< 3.0.18.0; version=>= 3.1.4.0-beta, < 3.1.13.0

Published CVSS scores

8.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
CWE-787Out-of-bounds Write
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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