What’s Vulnerable › Vulnerabilities

CVE-2026-21504: Heap Buffer Overflow in iccDEV ToneMap Parser

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-07 · updated 2026-06-17
• Weakness: CWE-122

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.

Affected products

• InternationalColorConsortium iccDEV: before 2.3.1.2 — fixed in 2.3.1.2

How to fix

Upgrade to a fixed version: InternationalColorConsortium iccDEV 2.3.1.2. Check the vendor advisory for mitigations.

References

• https://github.com/InternationalColorConsortium/iccDEV/blob/798be59011649a26a529600cc3cd56437634d3d0/IccProfLib/IccMpeBasic.cpp#L4557
• https://github.com/InternationalColorConsortium/iccDEV/commit/14fe3785e6b1f9992375b2a24617a0d7f6a70f95
• https://github.com/InternationalColorConsortium/iccDEV/commit/23a38f83f2a5874a1c4427df59ec342af3277cad
• https://github.com/InternationalColorConsortium/iccDEV/issues/366
• https://github.com/InternationalColorConsortium/iccDEV/pull/415
• https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-rqp9-r53c-3m9h

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