CVE-2026-21674Public exploit

Process memory leak via unreleased XML tag objects

Published Jan 6, 2026 · Updated Jan 6, 2026

Memory leak in iccDEV before 2.3.1.1 allows local users to consume process memory by supplying a malformed XML color profile. CIccProfileXml::ParseTag allocates pTag through CIccTagXmlFactory::CreateTag but returns false along four parsing error paths without deleting it. Exploitation requires a user to run iccFromXml on attacker-controlled XML; each demonstrated error leaks 80 bytes, with no reported crash or data impact.

CVSS severity3.3
Low
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

Memory leak in iccDEV before 2.3.1.1 allows local users to consume process memory by supplying a malformed XML color profile. CIccProfileXml::ParseTag allocates pTag through CIccTagXmlFactory::CreateTag but returns false along four parsing error paths without deleting it. Exploitation requires a user to run iccFromXml on attacker-controlled XML; each demonstrated error leaks 80 bytes, with no reported crash or data impact.

The record

CVE
CVE-2026-21674
Published
Jan 6, 2026
Updated
Jan 6, 2026
Vendor
International Color Consortium
Product
iccDEV
Classifications
CWE-401, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 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=< 2.3.1.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

International Color Consortium · iccDEVversion=< 2.3.1.1

Published CVSS scores

3.3GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS: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-401Missing Release of Memory after Effective Lifetime
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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