# libnss-systemd security updates Patch Radar has 37 security fixes for libnss-systemd, closing 28 CVEs. The newest security fix is libnss-systemd 249.11-0ubuntu3.22, released August 11, 2026. - Web page: https://patchblox.com/security/product/linux/libnss-systemd - Platform: Linux - Supported: yes ## Security fixes, newest first | Fix | Released | Fixed in | Priority | CVEs | Exploited | |---|---|---|---|---:|---:| | [libnss-systemd 249.11-0ubuntu3.22](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-systemd-249.11-0ubuntu3.22.md) | Aug 11, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.22 | Routine | 2 | 0 | | [libnss-systemd 255.4-1ubuntu8.17](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-systemd-255.4-1ubuntu8.17.md) | Aug 11, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.17 | Routine | 2 | 0 | | [libnss-systemd 259.5-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnss-systemd-259.5-0ubuntu3.4.md) | Aug 9, 2026 | Ubuntu 26.04.1 LTS (resolute) 259.5-0ubuntu3.4 | Routine | 3 | 0 | | [libnss-systemd 257.9-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libnss-systemd-257.9-0ubuntu2.3.md) | Apr 15, 2026 | Ubuntu 25.10 (questing) 257.9-0ubuntu2.3 | High | 2 | 0 | | [libnss-systemd 255.4-1ubuntu8.14](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-systemd-255.4-1ubuntu8.14.md) | Apr 15, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.14 | High | 2 | 0 | | [libnss-systemd 249.11-0ubuntu3.19](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-systemd-249.11-0ubuntu3.19.md) | Apr 15, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.19 | High | 2 | 0 | | [libnss-systemd 245.4-4ubuntu3.24+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-systemd-245.4-4ubuntu3.24-esm3.md) | Apr 15, 2026 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.24+esm3 | High | 2 | 0 | | [libnss-systemd 249.11-0ubuntu3.21](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-systemd-249.11-0ubuntu3.21.md) | Apr 10, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.21 | Routine | 2 | 0 | | [libnss-systemd 255.4-1ubuntu8.16](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-systemd-255.4-1ubuntu8.16.md) | Apr 10, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.16 | Routine | 1 | 0 | | [libnss-systemd 257.9-0ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libnss-systemd-257.9-0ubuntu2.5.md) | Apr 10, 2026 | Ubuntu 25.10 (questing) 257.9-0ubuntu2.5 | Routine | 1 | 0 | | [libnss-systemd 257.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-systemd-257.4-1ubuntu3.1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 257.4-1ubuntu3.1 | Routine | 1 | 0 | | [libnss-systemd 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-systemd-244.1-0ubuntu3.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 244.1-0ubuntu3 | High | 1 | 0 | | [libnss-systemd 248.3-1ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-systemd-248.3-1ubuntu3.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 248.3-1ubuntu3 | Routine | 1 | 0 | | [libnss-systemd 256.5-2ubuntu3.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-systemd-256.5-2ubuntu3.3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 256.5-2ubuntu3.3 | Routine | 1 | 0 | | [libnss-systemd 255.2-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-systemd-255.2-3ubuntu1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 255.2-3ubuntu1 | Routine | 1 | 0 | | [libnss-systemd 255.2-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-systemd-255.2-3ubuntu1.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 255.2-3ubuntu1 | Routine | 1 | 0 | | [libnss-systemd 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-systemd-244.1-0ubuntu3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 244.1-0ubuntu3 | High | 1 | 0 | | [libnss-systemd 248.3-1ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-systemd-248.3-1ubuntu3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 248.3-1ubuntu3 | Routine | 1 | 0 | | [libnss-systemd 245.4-4ubuntu3.24+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-systemd-245.4-4ubuntu3.24-esm1.md) | May 30, 2025 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.24+esm1 | Routine | 1 | 0 | | [libnss-systemd 249.11-0ubuntu3.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-systemd-249.11-0ubuntu3.16.md) | May 30, 2025 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.16 | Routine | 1 | 0 | | [libnss-systemd 255.4-1ubuntu8.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-systemd-255.4-1ubuntu8.8.md) | May 30, 2025 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.8 | Routine | 1 | 0 | | [libnss-systemd 245.4-4ubuntu3.20](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-systemd-245.4-4ubuntu3.20.md) | Jan 11, 2023 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.20 | Routine | 2 | 0 | | [libnss-systemd 249.11-0ubuntu3.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-systemd-249.11-0ubuntu3.7.md) | Jan 11, 2023 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.7 | Routine | 2 | 0 | | [libnss-systemd 237-3ubuntu10.57](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.57.md) | Nov 8, 2022 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.57 | Routine | 1 | 0 | | [libnss-systemd 237-3ubuntu10.54](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.54.md) | Aug 23, 2022 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.54 | High | 1 | 0 | | [libnss-systemd 245.4-4ubuntu3.15](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-systemd-245.4-4ubuntu3.15.md) | Jan 9, 2022 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.15 | Routine | 1 | 0 | | [libnss-systemd 237-3ubuntu10.49](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.49.md) | Jul 20, 2021 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 | Routine | 2 | 0 | | [libnss-systemd 245.4-4ubuntu3.10](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-systemd-245.4-4ubuntu3.10.md) | Jul 20, 2021 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 | Routine | 2 | 0 | | [libnss-systemd 237-3ubuntu10.38](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.38.md) | Feb 5, 2020 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.38 | High | 4 | 0 | | [libnss-systemd 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-systemd-244.1-0ubuntu3.md) | Feb 5, 2020 | Ubuntu 20.04 LTS (focal) 244.1-0ubuntu3 | High | 1 | 0 | | [libnss-systemd 237-3ubuntu10.28](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.28.md) | Sep 2, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.28 | Routine | 1 | 0 | | [libnss-systemd 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.19.md) | Apr 7, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.19 | High | 1 | 0 | | [libnss-systemd 237-3ubuntu10.13](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.13.md) | Feb 18, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.13 | High | 1 | 0 | | [libnss-systemd 237-3ubuntu10.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.11.md) | Jan 10, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.11 | High | 3 | 0 | | [libnss-systemd 237-3ubuntu10.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.6.md) | Oct 25, 2018 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.6 | Routine | 2 | 0 | | [libnss-systemd 237-3ubuntu10.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.4.md) | Oct 25, 2018 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.4 | Routine | 1 | 0 | | [libnss-systemd 237-3ubuntu10.9](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-systemd-237-3ubuntu10.9.md) | Feb 12, 2018 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.9 | Routine | 1 | 0 | --- 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 Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.