Heap-based buffer overflow in iccDEV - CVE-2026-21504
Published: May 5, 2026
Vulnerability identifier: #VU129867
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-21504
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: International Color Consortium
Affected software:
iccDEV
iccDEV
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service and modify data.
The vulnerability exists due to heap-based buffer overflow in the CIccMpeToneMap parser in IccProfLib/IccMpeBasic.cpp when parsing ICC color profiles. A remote attacker can trick the victim into processing a specially crafted ICC color profile to cause a denial of service and modify data.
User interaction is required to open or otherwise process a crafted ICC color profile.
How to mitigate CVE-2026-21504
Install security update from vendor's website.