# systemd-timesyncd security updates Patch Radar has 25 security fixes for systemd-timesyncd, closing 14 CVEs. The newest security fix is systemd-timesyncd 249.11-0ubuntu3.22, released August 11, 2026. - Web page: https://patchblox.com/security/product/linux/systemd-timesyncd - Platform: Linux - Supported: yes ## Security fixes, newest first | Fix | Released | Fixed in | Priority | CVEs | Exploited | |---|---|---|---|---:|---:| | [systemd-timesyncd 249.11-0ubuntu3.22](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-systemd-timesyncd-249.11-0ubuntu3.22.md) | Aug 11, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.22 | Routine | 2 | 0 | | [systemd-timesyncd 255.4-1ubuntu8.17](https://patchblox.com/security/data/fix/linux/ubuntu-noble-systemd-timesyncd-255.4-1ubuntu8.17.md) | Aug 11, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.17 | Routine | 2 | 0 | | [systemd-timesyncd 259.5-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-systemd-timesyncd-259.5-0ubuntu3.4.md) | Aug 9, 2026 | Ubuntu 26.04.1 LTS (resolute) 259.5-0ubuntu3.4 | Routine | 3 | 0 | | [systemd-timesyncd 257.9-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-systemd-timesyncd-257.9-0ubuntu2.3.md) | Apr 15, 2026 | Ubuntu 25.10 (questing) 257.9-0ubuntu2.3 | High | 2 | 0 | | [systemd-timesyncd 255.4-1ubuntu8.14](https://patchblox.com/security/data/fix/linux/ubuntu-noble-systemd-timesyncd-255.4-1ubuntu8.14.md) | Apr 15, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.14 | High | 2 | 0 | | [systemd-timesyncd 249.11-0ubuntu3.19](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-systemd-timesyncd-249.11-0ubuntu3.19.md) | Apr 15, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.19 | High | 2 | 0 | | [systemd-timesyncd 245.4-4ubuntu3.24+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-systemd-timesyncd-245.4-4ubuntu3.24-esm3.md) | Apr 15, 2026 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.24+esm3 | High | 2 | 0 | | [systemd-timesyncd 249.11-0ubuntu3.21](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-systemd-timesyncd-249.11-0ubuntu3.21.md) | Apr 10, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.21 | Routine | 2 | 0 | | [systemd-timesyncd 255.4-1ubuntu8.16](https://patchblox.com/security/data/fix/linux/ubuntu-noble-systemd-timesyncd-255.4-1ubuntu8.16.md) | Apr 10, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.16 | Routine | 1 | 0 | | [systemd-timesyncd 257.9-0ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-questing-systemd-timesyncd-257.9-0ubuntu2.5.md) | Apr 10, 2026 | Ubuntu 25.10 (questing) 257.9-0ubuntu2.5 | Routine | 1 | 0 | | [systemd-timesyncd 257.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-systemd-timesyncd-257.4-1ubuntu3.1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 257.4-1ubuntu3.1 | Routine | 1 | 0 | | [systemd-timesyncd 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-systemd-timesyncd-244.1-0ubuntu3.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 244.1-0ubuntu3 | High | 1 | 0 | | [systemd-timesyncd 248.3-1ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-systemd-timesyncd-248.3-1ubuntu3.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 248.3-1ubuntu3 | Routine | 1 | 0 | | [systemd-timesyncd 256.5-2ubuntu3.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-systemd-timesyncd-256.5-2ubuntu3.3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 256.5-2ubuntu3.3 | Routine | 1 | 0 | | [systemd-timesyncd 255.2-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-systemd-timesyncd-255.2-3ubuntu1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 255.2-3ubuntu1 | Routine | 1 | 0 | | [systemd-timesyncd 255.2-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-systemd-timesyncd-255.2-3ubuntu1.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 255.2-3ubuntu1 | Routine | 1 | 0 | | [systemd-timesyncd 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-systemd-timesyncd-244.1-0ubuntu3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 244.1-0ubuntu3 | High | 1 | 0 | | [systemd-timesyncd 248.3-1ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-systemd-timesyncd-248.3-1ubuntu3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 248.3-1ubuntu3 | Routine | 1 | 0 | | [systemd-timesyncd 245.4-4ubuntu3.24+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-systemd-timesyncd-245.4-4ubuntu3.24-esm1.md) | May 30, 2025 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.24+esm1 | Routine | 1 | 0 | | [systemd-timesyncd 249.11-0ubuntu3.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-systemd-timesyncd-249.11-0ubuntu3.16.md) | May 30, 2025 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.16 | Routine | 1 | 0 | | [systemd-timesyncd 255.4-1ubuntu8.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-systemd-timesyncd-255.4-1ubuntu8.8.md) | May 30, 2025 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.8 | Routine | 1 | 0 | | [systemd-timesyncd 245.4-4ubuntu3.20](https://patchblox.com/security/data/fix/linux/ubuntu-focal-systemd-timesyncd-245.4-4ubuntu3.20.md) | Jan 11, 2023 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.20 | Routine | 2 | 0 | | [systemd-timesyncd 249.11-0ubuntu3.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-systemd-timesyncd-249.11-0ubuntu3.7.md) | Jan 11, 2023 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.7 | Routine | 2 | 0 | | [systemd-timesyncd 245.4-4ubuntu3.15](https://patchblox.com/security/data/fix/linux/ubuntu-focal-systemd-timesyncd-245.4-4ubuntu3.15.md) | Jan 9, 2022 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.15 | Routine | 1 | 0 | | [systemd-timesyncd 245.4-4ubuntu3.10](https://patchblox.com/security/data/fix/linux/ubuntu-focal-systemd-timesyncd-245.4-4ubuntu3.10.md) | Jul 20, 2021 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 | Routine | 2 | 0 | --- Data as of 2026-11-13T01:58:51Z UTC. 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