CVE-2026-21506Public exploit

Process crash via unchecked XML child dereference

Published Jan 7, 2026 · Updated Jan 7, 2026

Null pointer dereference in iccDEV before 2.3.1.2 allows local users to crash an ICC-profile conversion process with crafted XML. CIccProfileXml::ParseBasic reads content through absent child pointers in empty ProfileVersion or ProfileSubClassVersion elements. Exploitation requires a user or consuming application to process the XML; the demonstrated consequence is an affected-process crash only.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in iccDEV before 2.3.1.2 allows local users to crash an ICC-profile conversion process with crafted XML. CIccProfileXml::ParseBasic reads content through absent child pointers in empty ProfileVersion or ProfileSubClassVersion elements. Exploitation requires a user or consuming application to process the XML; the demonstrated consequence is an affected-process crash only.

The record

CVE
CVE-2026-21506
Published
Jan 7, 2026
Updated
Jan 7, 2026
Vendor
International Color Consortium
Product
iccDEV
Classifications
CWE-20, CWE-476, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 7, 2026Record 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=< 2.3.1.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

International Color Consortium · iccDEVversion=< 2.3.1.2

Published CVSS scores

5.5GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-476NULL Pointer Dereference
T1204.002User Execution: Malicious 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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