# libssl1.1 security updates

Patch Radar has 48 security fixes for libssl1.1, closing 64 CVEs. The newest security fix is libssl1.1 1.1.1f-1ubuntu2.24+esm6, released October 1, 2026.

- Web page: https://patchblox.com/security/product/linux/libssl1.1
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libssl1.1 1.1.1f-1ubuntu2.24+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24-esm6.md) | Oct 1, 2026 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.24+esm6 | High | 4 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm11.md) | Oct 1, 2026 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm11 | High | 4 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.24+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24-esm5.md) | Aug 27, 2026 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.24+esm5 | High | 2 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm10](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm10.md) | Aug 27, 2026 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm10 | High | 4 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.24+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24-esm4.md) | Jun 24, 2026 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.24+esm4 | High | 5 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm9](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm9.md) | Jun 24, 2026 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm9 | High | 5 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.24+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24-esm3.md) | Apr 15, 2026 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.24+esm3 | High | 4 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm8](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm8.md) | Apr 15, 2026 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm8 | High | 4 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm7](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm7.md) | Jan 26, 2026 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm7 | High | 7 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.24+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24-esm2.md) | Jan 26, 2026 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.24+esm2 | High | 7 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm6.md) | Sep 29, 2025 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm6 | High | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.24+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24-esm1.md) | Sep 29, 2025 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.24+esm1 | High | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.24](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.24.md) | Jan 20, 2025 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.24 | Routine | 2 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.23](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.23.md) | Jun 27, 2024 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.23 | High | 3 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm4.md) | Jan 26, 2024 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm4 | Routine | 2 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.21](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.21.md) | Jan 26, 2024 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.21 | Routine | 2 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23-esm3.md) | Jul 31, 2023 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23+esm3 | Routine | 2 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.20](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.20.md) | Jul 31, 2023 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.20 | Routine | 2 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.23](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.23.md) | May 29, 2023 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.23 | Routine | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.19](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.19.md) | May 29, 2023 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.19 | Routine | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.22](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.22.md) | Mar 28, 2023 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.22 | High | 3 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.18](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.18.md) | Mar 28, 2023 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.18 | High | 3 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.21](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.21.md) | Feb 6, 2023 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.21 | High | 4 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.17](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.17.md) | Feb 6, 2023 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.17 | High | 4 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.20](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.20.md) | Jul 4, 2022 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.20 | Routine | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.16](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.16.md) | Jul 4, 2022 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.16 | Routine | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.19.md) | Jun 20, 2022 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.19 | High | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.15](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.15.md) | Jun 20, 2022 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.15 | High | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.17](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.17.md) | May 2, 2022 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.17 | High | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.13.md) | May 2, 2022 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.13 | High | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.15](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.15.md) | Mar 14, 2022 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.15 | High | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.12](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.12.md) | Mar 14, 2022 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.12 | High | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.13](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.13.md) | Aug 23, 2021 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.13 | Urgent | 2 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.8.md) | Aug 23, 2021 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.8 | Urgent | 2 | 0 |
| [libssl1.1 1.1.1l-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libssl1.1-1.1.1l-1ubuntu1.md) | Aug 23, 2021 | Ubuntu 22.04.1 LTS (jammy) 1.1.1l-1ubuntu1 | Urgent | 2 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.9](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.9.md) | Mar 24, 2021 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.9 | Routine | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.3.md) | Mar 24, 2021 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.3 | Routine | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.8](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.8.md) | Feb 16, 2021 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.8 | High | 2 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.2.md) | Feb 16, 2021 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.2 | High | 2 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.7.md) | Dec 7, 2020 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.7 | Routine | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.1.md) | Dec 7, 2020 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2.1 | Routine | 1 | 0 |
| [libssl1.1 1.1.1f-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.md) | Apr 20, 2020 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu2 | High | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.6.md) | Dec 6, 2019 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.6 | Routine | 4 | 0 |
| [libssl1.1 1.1.1f-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu1.md) | Dec 6, 2019 | Ubuntu 20.04 LTS (focal) 1.1.1f-1ubuntu1 | Routine | 1 | 0 |
| [libssl1.1 1.1.1-1ubuntu2.1~18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.2.md) | Mar 6, 2019 | Ubuntu 18.04.6 LTS (bionic) 1.1.1-1ubuntu2.1~18.04.2 | High | 1 | 0 |
| [libssl1.1 1.1.0g-2ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.0g-2ubuntu4.3.md) | Nov 14, 2018 | Ubuntu 18.04.6 LTS (bionic) 1.1.0g-2ubuntu4.3 | Routine | 3 | 0 |
| [libssl1.1 1.1.0g-2ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.0g-2ubuntu4.1.md) | Jun 12, 2018 | Ubuntu 18.04.6 LTS (bionic) 1.1.0g-2ubuntu4.1 | High | 3 | 0 |
| [libssl1.1 1.1.0g-2ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.0g-2ubuntu3.md) | Mar 26, 2018 | Ubuntu 18.04.6 LTS (bionic) 1.1.0g-2ubuntu3 | 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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