CVE-2023-46603Public exploitNetwork attack vector

Code execution via unchecked chroma table indexing

Published Oct 23, 2023 · Updated Aug 2, 2024

An out-of-bounds read in International Color Consortium DemoIccMAX 79ecb74 allows remote attackers to execute code via a crafted ICC profile. CIccPRMG::GetChroma interpolates values from the global icPRMG_Chroma table using nHIndex+1 and nLIndex+1 without keeping the derived indices within the table bounds. User interaction is required to process the malicious profile; the public proof of concept demonstrates an AddressSanitizer abort from a four-byte read, and the report identifies code execution as an impact.

CVSS severity8.8
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in International Color Consortium DemoIccMAX 79ecb74 allows remote attackers to execute code via a crafted ICC profile. CIccPRMG::GetChroma interpolates values from the global icPRMG_Chroma table using nHIndex+1 and nLIndex+1 without keeping the derived indices within the table bounds. User interaction is required to process the malicious profile; the public proof of concept demonstrates an AddressSanitizer abort from a four-byte read, and the report identifies code execution as an impact.

The record

CVE
CVE-2023-46603
Published
Oct 23, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 23, 2023CVE 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS: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-125Out-of-bounds Read
T1203Exploitation for Client Execution

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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