How severe is CVE-2026-21684?

CVE-2026-21684 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-21684 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21684?

CVE-2026-21684 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21684?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-21684 have an EU (EUVD) identifier?

Yes. CVE-2026-21684 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1394.

When was CVE-2026-21684 published?

CVE-2026-21684 was published on 2026-01-07 and last updated on 2026-06-17.

CVE-2026-21684

CVE-2026-21684 is a high-severity vulnerability in Color Iccdev with a CVSS 3.x base score of 7.1. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1394
Weakness: CWE-20
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 International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have Undefined Behavior in `CIccTagSpectralViewingConditions()`. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.

Frequently asked questions

What is CVE-2026-21684?: iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have Undefined Behavior in `CIccTagSpectralViewingConditions()`. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.
How severe is CVE-2026-21684?: CVE-2026-21684 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-21684 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21684?: CVE-2026-21684 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21684?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-21684 have an EU (EUVD) identifier?: Yes. CVE-2026-21684 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1394.
When was CVE-2026-21684 published?: CVE-2026-21684 was published on 2026-01-07 and last updated on 2026-06-17.

References

Affected products (1)

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

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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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