How severe is CVE-2026-21503?

CVE-2026-21503 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-21503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21503?

CVE-2026-21503 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21503?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-21503 have an EU (EUVD) identifier?

Yes. CVE-2026-21503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1386.

When was CVE-2026-21503 published?

CVE-2026-21503 was published on 2026-01-07 and last updated on 2026-06-17.

CVE-2026-21503

CVE-2026-21503 is a medium-severity vulnerability in Color Iccdev with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1386
Weakness: CWE-476
Affected product: Color Iccdev
Published: 2026-01-07
Last modified: 2026-06-17

Description

iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV has undefined behavior due to a null pointer passed to memcpy() in CIccTagSparseMatrixArray. This issue has been patched in version 2.3.1.2.

Frequently asked questions

What is CVE-2026-21503?: iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV has undefined behavior due to a null pointer passed to memcpy() in CIccTagSparseMatrixArray. This issue has been patched in version 2.3.1.2.
How severe is CVE-2026-21503?: CVE-2026-21503 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-21503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21503?: CVE-2026-21503 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-21503 have an EU (EUVD) identifier?: Yes. CVE-2026-21503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1386.
When was CVE-2026-21503 published?: CVE-2026-21503 was published on 2026-01-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:color:iccdev:*:*:*:*:*:*:*:*

More vulnerabilities in Color Iccdev

CVE-2026-21675 — Critical (CVSS 9.8): iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below…
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