Use-after-free vulnerability in the opj_j2k_write_mco function in j2k.c in OpenJPEG before 2.1.1 allows remote attackers to have unspecified impact via unknown vectors.
https://github.com/uclouvain/openjpeg/blob/master/CHANGELOG.md
http://www.openwall.com/lists/oss-security/2016/05/13/1
http://www.openwall.com/lists/oss-security/2015/09/15/4
http://www.debian.org/security/2016/dsa-3665
https://security.gentoo.org/glsa/201612-26
https://github.com/uclouvain/openjpeg/issues/563
https://github.com/uclouvain/openjpeg/commit/940100c28ae28931722290794889cf84a92c5f6f
https://bugzilla.redhat.com/show_bug.cgi?id=1263359
http://www.securitytracker.com/id/1038623
Source: Mitre, NVD
Published: 2016-09-21
Updated: 2025-04-12
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.02727