# rt4-apache2 security updates

Patch Radar has 6 security fixes for rt4-apache2, closing 4 CVEs. The newest is rt4-apache2 4.4.4+dfsg-2ubuntu2 (4.4.4+dfsg-2ubuntu2), released January 16, 2026.

- Web page: https://patchblox.com/security/product/linux/rt4-apache2
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [rt4-apache2 4.4.4+dfsg-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-rt4-apache2-4.4.4-dfsg-2ubuntu2.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 4.4.4+dfsg-2ubuntu2 | Routine | 1 | 0 |
| [rt4-apache2 4.4.4+dfsg-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-rt4-apache2-4.4.4-dfsg-2ubuntu2.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 4.4.4+dfsg-2ubuntu2 | Routine | 1 | 0 |
| [rt4-apache2 4.4.2-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-rt4-apache2-4.4.2-2ubuntu0.1-esm1.md) | Nov 2, 2023 | Ubuntu 18.04.6 LTS (bionic) 4.4.2-2ubuntu0.1~esm1 | High | 4 | 0 |
| [rt4-apache2 4.4.3-2+deb10u3build0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rt4-apache2-4.4.3-2-deb10u3build0.20.04.1.md) | Nov 2, 2023 | Ubuntu 20.04 LTS (focal) 4.4.3-2+deb10u3build0.20.04.1 | High | 4 | 0 |
| [rt4-apache2 4.4.4+dfsg-2ubuntu1.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rt4-apache2-4.4.4-dfsg-2ubuntu1.22.04.1.md) | Nov 2, 2023 | Ubuntu 22.04.1 LTS (jammy) 4.4.4+dfsg-2ubuntu1.22.04.1 | High | 4 | 0 |
| [rt4-apache2 4.4.4+dfsg-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-rt4-apache2-4.4.4-dfsg-2ubuntu2.md) | Oct 18, 2021 | Ubuntu 24.04.5 LTS (noble) 4.4.4+dfsg-2ubuntu2 | Routine | 1 | 0 |

---

Data as of 2026-11-06T17:00:54Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo