CVE-2024-40630Public exploitNetwork attack vector

Information disclosure via forged HEIF dimensions

Published Jul 15, 2024 · Updated Aug 2, 2024

Out-of-bounds read in OpenImageIO before 2.5.13.1 allows remote attackers to disclose process memory through a crafted HEIF file. HeifInput::seek_subimage trusts attacker-controlled ispe dimensions from the image handle when sizing ImageSpec, then read_native_scanline copies beyond the decoded plane buffer. A user or consuming program must read the crafted image; documented outcomes are process-memory disclosure and an oiiotool crash.

CVSS severity4.3
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in OpenImageIO before 2.5.13.1 allows remote attackers to disclose process memory through a crafted HEIF file. HeifInput::seek_subimage trusts attacker-controlled ispe dimensions from the image handle when sizing ImageSpec, then read_native_scanline copies beyond the decoded plane buffer. A user or consuming program must read the crafted image; documented outcomes are process-memory disclosure and an oiiotool crash.

The record

CVE
CVE-2024-40630
Published
Jul 15, 2024
Updated
Aug 2, 2024
Vendor
Academy Software Foundation
Product
OpenImageIO
Classifications
CWE-125, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=0 <2.5.13.1
  2. Affected versionversion=< 2.5.13.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Academy Software Foundation · OpenImageIOversion=0 <2.5.13.1; version=< 2.5.13.1

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
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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