# libcjson1 security updates

Patch Radar has 6 security fixes for libcjson1, closing 6 CVEs. The newest is libcjson1 1.7.10-1.1ubuntu0.1~esm1 (1.7.10-1.1ubuntu0.1~esm1), released September 3, 2025.

- Web page: https://patchblox.com/security/product/linux/libcjson1
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libcjson1 1.7.10-1.1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcjson1-1.7.10-1.1ubuntu0.1-esm1.md) | Sep 3, 2025 | Ubuntu 20.04 LTS (focal) 1.7.10-1.1ubuntu0.1~esm1 | Urgent | 3 | 0 |
| [libcjson1 1.7.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcjson1-1.7.15-1ubuntu0.1.md) | Sep 3, 2025 | Ubuntu 22.04.1 LTS (jammy) 1.7.15-1ubuntu0.1 | Urgent | 3 | 0 |
| [libcjson1 1.7.17-1ubuntu0.1~esm3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcjson1-1.7.17-1ubuntu0.1-esm3.md) | Sep 3, 2025 | Ubuntu 24.04.5 LTS (noble) 1.7.17-1ubuntu0.1~esm3 | Urgent | 3 | 0 |
| [libcjson1 1.7.18-3.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libcjson1-1.7.18-3.1ubuntu0.1.md) | Sep 3, 2025 | Ubuntu 25.10 (questing) 1.7.18-3.1ubuntu0.1 | Urgent | 1 | 0 |
| [libcjson1 1.7.15-1ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcjson1-1.7.15-1ubuntu0.1-esm2.md) | Apr 25, 2024 | Ubuntu 22.04.1 LTS (jammy) 1.7.15-1ubuntu0.1~esm2 | High | 3 | 0 |
| [libcjson1 1.7.17-1ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcjson1-1.7.17-1ubuntu0.1-esm2.md) | Apr 25, 2024 | Ubuntu 24.04.5 LTS (noble) 1.7.17-1ubuntu0.1~esm2 | High | 1 | 0 |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo