Medium 5.5Published Jan 5, 2021

CVE-2020-27842There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0.

Updated under an hour ago (Nov 2, 2026, 1:40 AM ET)

Does this affect you?

It affects uclouvain openjpeg and 10 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stackFree account, 3 products Every CVE for uclouvain openjpeg Exploited in the last 30 days

There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

uclouvain openjpeg uclouvain:openjpeg	before 2.4.0	NVD
fedoraproject extra_packages_for_enterprise_linux fedoraproject:extra_packages_for_enterprise_linux	7.0	NVD
fedoraproject fedora fedoraproject:fedora	32; 33	NVD
debian debian_linux debian:debian_linux	9.0; 10.0	NVD
redhat codeready_linux_builder redhat:codeready_linux_builder	8.0	NVD
redhat codeready_linux_builder_for_ibm_z_systems redhat:codeready_linux_builder_for_ibm_z_systems	8.0	NVD
redhat codeready_linux_builder_for_power_little_endian redhat:codeready_linux_builder_for_power_little_endian	8.0	NVD
redhat enterprise_linux redhat:enterprise_linux	8.0	NVD
redhat enterprise_linux_for_ibm_z_systems redhat:enterprise_linux_for_ibm_z_systems	8.0	NVD
redhat enterprise_linux_for_power_little_endian redhat:enterprise_linux_for_power_little_endian	8.0	NVD
1–10 of 11

References

References

https://bugzilla.redhat.com/show_bug.cgi?id=1907513	issue-tracking, patch, third-party-advisory
https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html	mailing-list, third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/
https://security.gentoo.org/glsa/202101-29	third-party-advisory
https://www.debian.org/security/2021/dsa-4882	mailing-list, third-party-advisory
https://www.oracle.com//security-alerts/cpujul2021.html	patch, third-party-advisory
https://www.oracle.com/security-alerts/cpuApr2021.html	patch, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.