How severe is CVE-2026-21673?

CVE-2026-21673 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-21673 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21673?

CVE-2026-21673 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21673?

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-2026-21673 have an EU (EUVD) identifier?

Yes. CVE-2026-21673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1148.

When was CVE-2026-21673 published?

CVE-2026-21673 was published on 2026-01-06 and last updated on 2026-06-17.

CVE-2026-21673

CVE-2026-21673 is a high-severity vulnerability in Color Iccdev with a CVSS 3.x base score of 7.8. 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1148
Weakness: CWE-190
Affected product: Color Iccdev
Published: 2026-01-06
Last modified: 2026-06-17

Description

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have overflows and underflows in CIccXmlArrayType::ParseTextCountNum(). This vulnerability affects users of the iccDEV library who process ICC color profiles. This issue is fixed in version 2.3.1.1.

Frequently asked questions

What is CVE-2026-21673?: iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have overflows and underflows in CIccXmlArrayType::ParseTextCountNum(). This vulnerability affects users of the iccDEV library who process ICC color profiles. This issue is fixed in version 2.3.1.1.
How severe is CVE-2026-21673?: CVE-2026-21673 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-21673 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21673?: CVE-2026-21673 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21673?: 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-2026-21673 have an EU (EUVD) identifier?: Yes. CVE-2026-21673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1148.
When was CVE-2026-21673 published?: CVE-2026-21673 was published on 2026-01-06 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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