High 7.8Published Jan 26, 2021

CVE-2020-27814A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files.

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

Does this affect you?

It affects uclouvain openjpeg and 1 other product. 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

A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of the user running such an application.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-122
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	through 1.5.1; from 2.0.0 before 2.4.0	NVD
debian debian_linux debian:debian_linux	9.0; 10.0	NVD

References

References

https://bugzilla.redhat.com/show_bug.cgi?id=1901998	issue-tracking, patch, third-party-advisory
https://github.com/uclouvain/openjpeg/issues/1283	exploit, issue-tracking, third-party-advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00011.html	mailing-list, third-party-advisory
https://security.gentoo.org/glsa/202101-29	third-party-advisory
https://www.debian.org/security/2021/dsa-4882	third-party-advisory
https://www.oracle.com//security-alerts/cpujul2021.html	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.