# liblog4j2-java security updates

Patch Radar has 6 security fixes for liblog4j2-java, closing 5 CVEs, 2 of which are being exploited. The newest is liblog4j2-java 2.12.4-0ubuntu0.1 (2.12.4-0ubuntu0.1), released December 28, 2021.

- Web page: https://patchblox.com/security/product/linux/liblog4j2-java
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [liblog4j2-java 2.12.4-0ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblog4j2-java-2.12.4-0ubuntu0.1.md) | Dec 28, 2021 | Ubuntu 18.04.6 LTS (bionic) 2.12.4-0ubuntu0.1 | Routine | 2 | 0 |
| [liblog4j2-java 2.17.1-0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblog4j2-java-2.17.1-0.20.04.1.md) | Dec 28, 2021 | Ubuntu 20.04 LTS (focal) 2.17.1-0.20.04.1 | Routine | 1 | 0 |
| [liblog4j2-java 2.17.0-0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblog4j2-java-2.17.0-0.20.04.1.md) | Dec 18, 2021 | Ubuntu 20.04 LTS (focal) 2.17.0-0.20.04.1 | Routine | 1 | 0 |
| [liblog4j2-java 2.16.0-0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblog4j2-java-2.16.0-0.20.04.1.md) | Dec 14, 2021 | Ubuntu 20.04 LTS (focal) 2.16.0-0.20.04.1 | Patch now | 2 | 1 |
| [liblog4j2-java 2.10.0-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblog4j2-java-2.10.0-2ubuntu0.1.md) | Dec 9, 2021 | Ubuntu 18.04.6 LTS (bionic) 2.10.0-2ubuntu0.1 | Patch now | 1 | 1 |
| [liblog4j2-java 2.15.0-0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-liblog4j2-java-2.15.0-0.20.04.1.md) | Dec 9, 2021 | Ubuntu 20.04 LTS (focal) 2.15.0-0.20.04.1 | Patch now | 1 | 1 |

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Data as of 2026-11-07T00:32:44Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo