Medium 6.5Published Jul 12, 2024

CVE-2023-39329A flaw was found in OpenJPEG.

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

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It affects uclouvain openjpeg. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.59%, higher than 48% of scored CVEs.

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

A flaw was found in OpenJPEG. A resource exhaustion can occur in the opj_t1_decode_cblks function in tcd.c through a crafted image file, causing a denial of service.

CVSS: 6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.59% (percentile 48)
Assigned by: Not given
NVD analysis: Modified
Record last updated: Sep 21, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

uclouvain openjpeg uclouvain:openjpeg	2.0; all versions; 2.5.0	NVD

References

References

https://access.redhat.com/errata/RHSA-2026:4128
https://access.redhat.com/security/cve/CVE-2023-39329	third-party-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2295816	issue-tracking, third-party-advisory
https://github.com/uclouvain/openjpeg/issues/1474

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.