6.6
MEDIUM CVSS 3.1
CVE-2026-21504
Heap Buffer Overflow in iccDEV ToneMap Parser
Description

iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to heap buffer overflow in the ToneMap parser. This issue has been patched in version 2.3.1.2.

INFO

Published Date :

Jan. 7, 2026, 6:15 p.m.

Last Modified :

Jan. 8, 2026, 6:08 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-21504 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM MITRE-CVE
Solution
Update iccDEV to version 2.3.1.2 or later to fix heap buffer overflow in ToneMap parser.
  • Update iccDEV to version 2.3.1.2.
  • Apply vendor-provided patches if available.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-21504 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-21504 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-21504 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-21504 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jan. 07, 2026

    Action Type Old Value New Value
    Added Description iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to heap buffer overflow in the ToneMap parser. This issue has been patched in version 2.3.1.2.
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
    Added CWE CWE-787
    Added CWE CWE-122
    Added CWE CWE-193
    Added Reference https://github.com/InternationalColorConsortium/iccDEV/blob/798be59011649a26a529600cc3cd56437634d3d0/IccProfLib/IccMpeBasic.cpp#L4557
    Added Reference https://github.com/InternationalColorConsortium/iccDEV/commit/14fe3785e6b1f9992375b2a24617a0d7f6a70f95
    Added Reference https://github.com/InternationalColorConsortium/iccDEV/commit/23a38f83f2a5874a1c4427df59ec342af3277cad
    Added Reference https://github.com/InternationalColorConsortium/iccDEV/issues/366
    Added Reference https://github.com/InternationalColorConsortium/iccDEV/pull/415
    Added Reference https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-rqp9-r53c-3m9h
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.6
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact