CVE-2022-41649Network attack vector

Heap memory disclosure via byte-count scaling error

Published Dec 23, 2022 · Updated Apr 15, 2025

Out-of-bounds read in OpenImageIO 2.3.19.0 allows remote attackers to disclose adjacent heap data via a crafted TIFF file. TIFFInput::readspec casts byte-oriented IPTC data to uint32_t pointers, then uses the byte count as an element count and copies four times the allocated data. The path is reached when an application parses a TIFF RichTIFFIPTC tag; leaked metadata can expose process information and assist a separate mitigation bypass.

CVSS severity7.5
High
EPSS probability1.47%
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 2.3.19.0 allows remote attackers to disclose adjacent heap data via a crafted TIFF file. TIFFInput::readspec casts byte-oriented IPTC data to uint32_t pointers, then uses the byte count as an element count and copies four times the allocated data. The path is reached when an application parses a TIFF RichTIFFIPTC tag; leaked metadata can expose process information and assist a separate mitigation bypass.

The record

CVE
CVE-2022-41649
Published
Dec 23, 2022
Updated
Apr 15, 2025
Vendor
Academy Software Foundation
Product
OpenImageIO
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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=v2.3.19.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Academy Software Foundation · OpenImageIOversion=v2.3.19.0

Published CVSS scores

7.5Cisco TalosCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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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