CVE-2018-5727: Uclouvain Openjpeg

Medium severity, CVSS 6.5. EPSS: 1.9% chance of exploitation in the next 30 days.

In OpenJPEG 2.3.0, there is an integer overflow vulnerability in the opj_t1_encode_cblks function (openjp2/t1.c). Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.

Affected products

• Uclouvain Openjpeg: version 2.3.0 only

Published 2018-01-16. Last modified 2026-06-17.