# DLA-4107-1: openjpeg2 security update

DLA-4107-1, released April 1, 2025, fixes 1 CVE in openjpeg2 (version 2.4.0-3+deb11u1). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/dla-4107-1
- Platform: Linux
- Released: Apr 1, 2025
- Priority: High (Closes CVE-2021-29338, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2021-29338

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [openjpeg2](https://patchblox.com/security/data/product/linux/openjpeg2.md) | Debian 11.6 (bullseye) | 2.4.0-3+deb11u1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-29338](https://patchblox.com/security/data/cve/CVE-2021-29338.md) | High | openjpeg2: OpenJPEG is an open source library for reading and writing image files in JPEG2000 format.  The following packages ha... | 7.8 | 0.0156 |  |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo