Is this vulnerability remotely exploitable?

It can be, depending on how ICC profiles enter the system. If an application processes ICC profiles embedded in remotely supplied content (such as downloaded images, documents, or print jobs), an attacker may trigger the vulnerability remotely by supplying a crafted file that is automatically processed.

What access does an attacker need to exploit this?

An attacker generally needs the ability to cause the affected application or service to load and evaluate a malicious ICC profile. This might be through opening a file, viewing or rendering media with embedded profiles, or submitting print or design jobs that include custom profiles.

What is the safest general fix pattern?

The most robust fix pattern is to strengthen type and bounds checking within ICC profile parsing and evaluation, ensuring that any profile-derived data is validated before use and that evaluation functions never operate on structures whose type or size is uncertain. Refactoring to eliminate ambiguous casts and centralize validation logic helps reduce similar risks.

Severity:

HIGH RISK

(8.8)

Type Confusion in ICC Profile Evaluation (CWE-843) in iccDEV Library

CVE-2026-21683

Published:

Jan 7, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Type Confusion

CWE:

CWE-20;CWE-843

Impact:

Memory Corruption and Potential Code Execution

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Type Confusion

CWE:

CWE-20;CWE-843

Impact:

Memory Corruption and Potential Code Execution

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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Type Confusion in ICC Profile Evaluation (CWE-843) in iccDEV Library

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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