CVE-2026-21676

iccDEV has a Heap-based Buffer Overflow in its CIccMBB::Validate() function

8.8 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.41%Up 0.4 points since Jan 6, 2026

What each source reports

CVE List Score used 8.8

iccDEV has a Heap-based Buffer Overflow in its CIccMBB::Validate() function

Record: CVE-2026-21676
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-122
Updated: 2026-11-02

EUVDEUVD-2026-1151 8.8

Record: EUVD-2026-1151
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

NVD 8.8

Record: CVE-2026-21676
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-122
Updated: 2026-11-02

OSV 8.8

iccDEV has a Heap-based Buffer Overflow in its CIccMBB::Validate() function

Record: CVE-2026-21676
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-122
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-21676 is a high vulnerability (CVSS 8.8) in Color Iccdev, published January 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.