# nsd 4.14.0-1ubuntu0.1~esm1: nsd 4.14.0-1ubuntu0.1~esm1 for Ubuntu 26.04.1 LTS (resolute)

nsd 4.14.0-1ubuntu0.1~esm1, released June 24, 2026, fixes 4 CVEs in nsd. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-resolute-nsd-4.14.0-1ubuntu0.1-esm1
- Platform: Linux
- Released: Jun 24, 2026
- Priority: High (Closes CVE-2026-12244, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [nsd](https://patchblox.com/security/data/product/linux/nsd.md) | Ubuntu 26.04.1 LTS (resolute) | 4.14.0-1ubuntu0.1~esm1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-12244](https://patchblox.com/security/data/cve/CVE-2026-12244.md) | High | nsd: Heap overflow and crash with crafted SVCB RR (bsc#1269566) | 8.8 | 0.0049 |  |
| [CVE-2026-12245](https://patchblox.com/security/data/cve/CVE-2026-12245.md) | High | nsd: Denial of DNS over TLS service by any DoT client (bsc#1269565) | 7.5 | 0.0046 |  |
| [CVE-2026-12246](https://patchblox.com/security/data/cve/CVE-2026-12246.md) | High | nsd: Out of bounds stack write with crafted APL RR (bsc#1269564) | 8.1 | 0.0044 |  |
| [CVE-2026-12490](https://patchblox.com/security/data/cve/CVE-2026-12490.md) | High | nsd: Bypass of client certificate verification with transfer over TLS (bsc#1269563) | 7.5 | 0.0022 |  |

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Data as of 2026-11-13T08:00:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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