# libass9 security updates

Patch Radar has 4 security fixes for libass9, closing 4 CVEs. The newest security fix is libass9 1:0.17.4-2ubuntu0.1~esm1, released July 13, 2026.

- Web page: https://patchblox.com/security/product/linux/libass9
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libass9 1:0.17.4-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libass9-1-0.17.4-2ubuntu0.1-esm1.md) | Jul 13, 2026 | Ubuntu 26.04.1 LTS (resolute) 1:0.17.4-2ubuntu0.1~esm1 | Routine | 2 | 0 |
| [libass9 1:0.17.1-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libass9-1-0.17.1-2ubuntu0.1-esm1.md) | Jul 13, 2026 | Ubuntu 24.04.5 LTS (noble) 1:0.17.1-2ubuntu0.1~esm1 | Routine | 1 | 0 |
| [libass9 1:0.14.0-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libass9-1-0.14.0-1ubuntu0.1-esm1.md) | Mar 23, 2021 | Ubuntu 18.04.6 LTS (bionic) 1:0.14.0-1ubuntu0.1~esm1 | Routine | 2 | 0 |
| [libass9 1:0.14.0-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libass9-1-0.14.0-2ubuntu0.1-esm1.md) | Mar 23, 2021 | Ubuntu 20.04 LTS (focal) 1:0.14.0-2ubuntu0.1~esm1 | Routine | 2 | 0 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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