CVE-2026-21501Public exploit

Process crash via recursive calculator sub-element parsing

Published Jan 7, 2026 · Updated Jan 7, 2026

Stack overflow in calculator parsing in International Color Consortium iccDEV before 2.3.1.2 allows local users to crash tools via a crafted profile. CIccMpeCalculator::Read accepts sub-element offsets that point into the tag header, allowing a circular reference to recurse through Read and SetElem until the process stack is exhausted. A user must cause an application linked to the library, or the iccDumpProfile tool, to process the malformed profile; the demonstrated consequence is a process crash.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in calculator parsing in International Color Consortium iccDEV before 2.3.1.2 allows local users to crash tools via a crafted profile. CIccMpeCalculator::Read accepts sub-element offsets that point into the tag header, allowing a circular reference to recurse through Read and SetElem until the process stack is exhausted. A user must cause an application linked to the library, or the iccDumpProfile tool, to process the malformed profile; the demonstrated consequence is a process crash.

The record

CVE
CVE-2026-21501
Published
Jan 7, 2026
Updated
Jan 7, 2026
Vendor
International Color Consortium
Product
iccDEV
Classifications
CWE-787, CWE-20, 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

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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-787Out-of-bounds Write
CWE-20Improper Input Validation
T1204.002Malicious 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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