# apache-log4j2 security updates

Patch Radar has 16 security fixes for apache-log4j2, closing 5 CVEs, 2 of which are being exploited. The newest security fix is DLA-4444-1 (2.17.1-1~deb11u2), released January 19, 2026.

- Web page: https://patchblox.com/security/product/linux/apache-log4j2
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [DLA-4444-1](https://patchblox.com/security/data/fix/linux/dla-4444-1.md) | Jan 19, 2026 | Debian 11.6 (bullseye) 2.17.1-1~deb11u2 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-44832](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44832.md) | Dec 28, 2021 | Debian 12.15 (bookworm) 2.17.1-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-44832](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44832.md) | Dec 28, 2021 | Debian 13.5 (trixie) 2.17.1-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-44832](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44832.md) | Dec 28, 2021 | Debian 14 2.17.1-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-45105](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45105.md) | Dec 18, 2021 | Debian 12.15 (bookworm) 2.17.0-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-45105](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45105.md) | Dec 18, 2021 | Debian 13.5 (trixie) 2.17.0-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2021-45105](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45105.md) | Dec 18, 2021 | Debian 14 2.17.0-1 | Routine | 1 | 0 |
| [DSA-5024-1](https://patchblox.com/security/data/fix/linux/dsa-5024-1.md) | Dec 18, 2021 | Debian 11.6 (bullseye) 2.17.0-1~deb11u1 | Routine | 1 | 0 |
| [DSA-5022-1](https://patchblox.com/security/data/fix/linux/dsa-5022-1.md) | Dec 16, 2021 | Debian 11.6 (bullseye) 2.16.0-1~deb11u1 | Patch now | 1 | 1 |
| [DEBIAN-CVE-2021-45046](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45046.md) | Dec 14, 2021 | Debian 12.15 (bookworm) 2.16.0-1 | Patch now | 1 | 1 |
| [DEBIAN-CVE-2021-45046](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45046.md) | Dec 14, 2021 | Debian 13.5 (trixie) 2.16.0-1 | Patch now | 1 | 1 |
| [DEBIAN-CVE-2021-45046](https://patchblox.com/security/data/fix/linux/debian-cve-2021-45046.md) | Dec 14, 2021 | Debian 14 2.16.0-1 | Patch now | 1 | 1 |
| [DSA-5020-1](https://patchblox.com/security/data/fix/linux/dsa-5020-1.md) | Dec 11, 2021 | Debian 11.6 (bullseye) 2.15.0-1~deb11u1 | Patch now | 1 | 1 |
| [DEBIAN-CVE-2021-44228](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44228.md) | Dec 10, 2021 | Debian 12.15 (bookworm) 2.15.0-1 | Patch now | 1 | 1 |
| [DEBIAN-CVE-2021-44228](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44228.md) | Dec 10, 2021 | Debian 13.5 (trixie) 2.15.0-1 | Patch now | 1 | 1 |
| [DEBIAN-CVE-2021-44228](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44228.md) | Dec 10, 2021 | Debian 14 2.15.0-1 | Patch now | 1 | 1 |

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Data as of 2026-11-07T12:40:37Z 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

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