VDB-339983 · CVE-2026-21686 · EUVD-2026-1392

InternationalColorConsortium iccDEV up to 2.3.1.1 ICC Color Profile CIccTagLutAtoB::Validate input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in InternationalColorConsortium iccDEV up to 2.3.1.1. It has been rated as problematic. The affected element is the function CIccTagLutAtoB::Validate of the component ICC Color Profile Handler. The manipulation leads to input validation. This vulnerability is listed as CVE-2026-21686. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in InternationalColorConsortium iccDEV up to 2.3.1.1. It has been rated as problematic. This issue affects the function CIccTagLutAtoB::Validate of the component ICC Color Profile Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is integrity, and availability. The summary by CVE is:

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 `CIccTagLutAtoB::Validate()`. 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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-21686 since 01/02/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.3.1.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-1392). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

InternationalColorConsortium

Name

iccDEV

Version

Website

Product: https://github.com/InternationalColorConsortium/iccDEV/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.1
CNA Vector (GitHub_M): 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: iccDEV 2.3.1.2

Timelineinfo

01/02/2026 CVE reserved
01/07/2026 +5 days Advisory disclosed
01/07/2026 +0 days VulDB entry created
01/08/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-21686 (🔒)
GCVE (CVE): GCVE-0-2026-21686
GCVE (VulDB): GCVE-100-339983
EUVD: 🔒

Entryinfo

Created: 01/07/2026 23:03
Updated: 01/08/2026 12:50
Changes: 01/07/2026 23:03 (64), 01/08/2026 12:50 (1)
Complete: 🔍
Cache ID: 216::103