How severe is CVE-2026-21676?

CVE-2026-21676 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-21676 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21676?

CVE-2026-21676 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21676?

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-2026-21676 have an EU (EUVD) identifier?

Yes. CVE-2026-21676 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1151.

When was CVE-2026-21676 published?

CVE-2026-21676 was published on 2026-01-06 and last updated on 2026-06-17.

CVE-2026-21676

CVE-2026-21676 is a high-severity vulnerability in Color Iccdev with a CVSS 3.x base score of 8.8. 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-122.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1151
Weakness: CWE-122
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 a Heap-based Buffer Overflow in its CIccMBB::Validate function which checks tag data validity. This issue is fixed in version 2.3.1.1.

Frequently asked questions

What is CVE-2026-21676?: iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1 and below have a Heap-based Buffer Overflow in its CIccMBB::Validate function which checks tag data validity. This issue is fixed in version 2.3.1.1.
How severe is CVE-2026-21676?: CVE-2026-21676 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-21676 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21676?: CVE-2026-21676 affects Color Iccdev. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21676?: 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-2026-21676 have an EU (EUVD) identifier?: Yes. CVE-2026-21676 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1151.
When was CVE-2026-21676 published?: CVE-2026-21676 was published on 2026-01-06 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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