CVE-2022-43599Public exploitNetwork attack vector

Code execution via wrapping IFF tile loop

Published Dec 23, 2022 · Updated Apr 14, 2025

Heap buffer overflow in OpenImageIO 2.4.4.2 allows attackers to execute code through a crafted image specification for IFF output. In IFFOutput::close, a uint16_t x-coordinate loop uses an inclusive comparison, wraps after xmax reaches 0xFFFF, and writes beyond its per-tile heap vector. Reachability requires an application to generate RLE-compressed UINT8 IFF output from an attacker-controlled input file or ImageOutput specification.

CVSS severity8.1
High
EPSS probability1.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in OpenImageIO 2.4.4.2 allows attackers to execute code through a crafted image specification for IFF output. In IFFOutput::close, a uint16_t x-coordinate loop uses an inclusive comparison, wraps after xmax reaches 0xFFFF, and writes beyond its per-tile heap vector. Reachability requires an application to generate RLE-compressed UINT8 IFF output from an attacker-controlled input file or ImageOutput specification.

The record

CVE
CVE-2022-43599
Published
Dec 23, 2022
Updated
Apr 14, 2025
Vendor
Academy Software Foundation
Product
OpenImageIO
Classifications
CWE-122
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record 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=v2.4.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Academy Software Foundation · OpenImageIOversion=v2.4.4.2

Published CVSS scores

8.1Cisco TalosCVSS:3.0/AV:N/AC:H/PR:N/UI:N/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 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-122Heap-based Buffer Overflow

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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