# krb5-kdc security updates Patch Radar has 34 security fixes for krb5-kdc, closing 20 CVEs. The newest is krb5-kdc 1.19.2-2ubuntu0.8 (1.19.2-2ubuntu0.8), released June 11, 2026. - Web page: https://patchblox.com/security/product/linux/krb5-kdc - Platform: Linux - Supported: yes ## Security fixes, newest first | Fix | Released | Fixed in | Priority | CVEs | Exploited | |---|---|---|---|---:|---:| | [krb5-kdc 1.19.2-2ubuntu0.8](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-krb5-kdc-1.19.2-2ubuntu0.8.md) | Jun 11, 2026 | Ubuntu 22.04.1 LTS (jammy) 1.19.2-2ubuntu0.8 | High | 3 | 0 | | [krb5-kdc 1.20.1-6ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-noble-krb5-kdc-1.20.1-6ubuntu2.7.md) | Jun 11, 2026 | Ubuntu 24.04.5 LTS (noble) 1.20.1-6ubuntu2.7 | High | 3 | 0 | | [krb5-kdc 1.22.1-2ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-krb5-kdc-1.22.1-2ubuntu4.1.md) | Jun 11, 2026 | Ubuntu 26.04.1 LTS (resolute) 1.22.1-2ubuntu4.1 | High | 3 | 0 | | [krb5-kdc 1.21.3-4ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-krb5-kdc-1.21.3-4ubuntu1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 1.21.3-4ubuntu1 | High | 1 | 0 | | [krb5-kdc 1.21.3-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-krb5-kdc-1.21.3-3ubuntu0.1.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 1.21.3-3ubuntu0.1 | High | 1 | 0 | | [krb5-kdc 1.16-2ubuntu0.4+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.4-esm5.md) | Apr 14, 2025 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.4+esm5 | Routine | 1 | 0 | | [krb5-kdc 1.17-6ubuntu4.11](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.11.md) | Apr 14, 2025 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.11 | Routine | 1 | 0 | | [krb5-kdc 1.19.2-2ubuntu0.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-krb5-kdc-1.19.2-2ubuntu0.7.md) | Apr 14, 2025 | Ubuntu 22.04.1 LTS (jammy) 1.19.2-2ubuntu0.7 | Routine | 1 | 0 | | [krb5-kdc 1.20.1-6ubuntu2.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-krb5-kdc-1.20.1-6ubuntu2.6.md) | Apr 14, 2025 | Ubuntu 24.04.5 LTS (noble) 1.20.1-6ubuntu2.6 | Routine | 1 | 0 | | [krb5-kdc 1.21.3-3ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-krb5-kdc-1.21.3-3ubuntu0.2.md) | Jan 31, 2025 | Ubuntu 24.10 (oracular) 1.21.3-3ubuntu0.2 | High | 3 | 0 | | [krb5-kdc 1.21.3-4ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-krb5-kdc-1.21.3-4ubuntu2.md) | Jan 31, 2025 | Ubuntu 25.04 (plucky) 1.21.3-4ubuntu2 | High | 3 | 0 | | [krb5-kdc 1.20.1-6ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-krb5-kdc-1.20.1-6ubuntu2.5.md) | Jan 30, 2025 | Ubuntu 24.04.5 LTS (noble) 1.20.1-6ubuntu2.5 | High | 4 | 0 | | [krb5-kdc 1.17-6ubuntu4.9](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.9.md) | Jan 30, 2025 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.9 | High | 3 | 0 | | [krb5-kdc 1.19.2-2ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-krb5-kdc-1.19.2-2ubuntu0.6.md) | Jan 30, 2025 | Ubuntu 22.04.1 LTS (jammy) 1.19.2-2ubuntu0.6 | High | 3 | 0 | | [krb5-kdc 1.21.3-4ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-krb5-kdc-1.21.3-4ubuntu2.md) | Jan 30, 2025 | Ubuntu 25.10 (questing) 1.21.3-4ubuntu2 | High | 3 | 0 | | [krb5-kdc 1.16-2ubuntu0.4+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.4-esm3.md) | Jul 9, 2024 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.4+esm3 | High | 1 | 0 | | [krb5-kdc 1.17-6ubuntu4.8](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.8.md) | Jul 9, 2024 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.8 | High | 1 | 0 | | [krb5-kdc 1.19.2-2ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-krb5-kdc-1.19.2-2ubuntu0.5.md) | Jul 9, 2024 | Ubuntu 22.04.1 LTS (jammy) 1.19.2-2ubuntu0.5 | High | 1 | 0 | | [krb5-kdc 1.20.1-6ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-krb5-kdc-1.20.1-6ubuntu2.3.md) | Jul 9, 2024 | Ubuntu 24.04.5 LTS (noble) 1.20.1-6ubuntu2.3 | High | 1 | 0 | | [krb5-kdc 1.16-2ubuntu0.4+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.4-esm2.md) | Jun 28, 2024 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.4+esm2 | High | 2 | 0 | | [krb5-kdc 1.17-6ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.6.md) | Jun 28, 2024 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.6 | High | 2 | 0 | | [krb5-kdc 1.19.2-2ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-krb5-kdc-1.19.2-2ubuntu0.4.md) | Jun 28, 2024 | Ubuntu 22.04.1 LTS (jammy) 1.19.2-2ubuntu0.4 | High | 2 | 0 | | [krb5-kdc 1.20.1-6ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-krb5-kdc-1.20.1-6ubuntu2.1.md) | Jun 28, 2024 | Ubuntu 24.04.5 LTS (noble) 1.20.1-6ubuntu2.1 | High | 2 | 0 | | [krb5-kdc 1.16-2ubuntu0.4+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.4-esm1.md) | Aug 7, 2023 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.4+esm1 | High | 1 | 0 | | [krb5-kdc 1.17-6ubuntu4.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.4.md) | Aug 7, 2023 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.4 | High | 1 | 0 | | [krb5-kdc 1.19.2-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-krb5-kdc-1.19.2-2ubuntu0.3.md) | Aug 7, 2023 | Ubuntu 22.04.1 LTS (jammy) 1.19.2-2ubuntu0.3 | High | 1 | 0 | | [krb5-kdc 1.16-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.3.md) | Dec 24, 2022 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.3 | High | 2 | 0 | | [krb5-kdc 1.17-6ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.2.md) | Dec 24, 2022 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.2 | High | 1 | 0 | | [krb5-kdc 1.19.2-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-krb5-kdc-1.19.2-2ubuntu0.1.md) | Dec 24, 2022 | Ubuntu 22.04.1 LTS (jammy) 1.19.2-2ubuntu0.1 | High | 1 | 0 | | [krb5-kdc 1.16-2ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.4.md) | Aug 22, 2021 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.4 | High | 2 | 0 | | [krb5-kdc 1.17-6ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.3.md) | Aug 22, 2021 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.3 | High | 2 | 0 | | [krb5-kdc 1.16-2ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.2.md) | Nov 6, 2020 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.2 | High | 1 | 0 | | [krb5-kdc 1.17-6ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-krb5-kdc-1.17-6ubuntu4.1.md) | Nov 6, 2020 | Ubuntu 20.04 LTS (focal) 1.17-6ubuntu4.1 | High | 1 | 0 | | [krb5-kdc 1.16-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-krb5-kdc-1.16-2ubuntu0.1.md) | Mar 6, 2018 | Ubuntu 18.04.6 LTS (bionic) 1.16-2ubuntu0.1 | Routine | 3 | 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