CVE-2022-43595Public exploitNetwork attack vector

Application crash via recursive FITS output close

Published Dec 23, 2022 · Updated Apr 14, 2025

Denial of service in OpenImageIO 2.4.4.2 allows attackers to crash an application via input used to write a FITS image. FitsOutput::close calls write_scanlines for tile emulation; an out-of-range y value makes FitsOutput::write_scanline call close again, causing unbounded recursion and stack exhaustion. Exploitation requires control of an input image or specification consumed by a FITS-writing workflow, and the resulting process crash interrupts that application.

CVSS severity5.9
Medium
EPSS probability1.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in OpenImageIO 2.4.4.2 allows attackers to crash an application via input used to write a FITS image. FitsOutput::close calls write_scanlines for tile emulation; an out-of-range y value makes FitsOutput::write_scanline call close again, causing unbounded recursion and stack exhaustion. Exploitation requires control of an input image or specification consumed by a FITS-writing workflow, and the resulting process crash interrupts that application.

The record

CVE
CVE-2022-43595
Published
Dec 23, 2022
Updated
Apr 14, 2025
Vendor
Academy Software Foundation
Product
OpenImageIO
Classifications
CWE-476, T1499.004
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

5.9Cisco TalosCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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