# CVE-2025-0620: samba: This update for samba fixes the following issues:  - CVE-2025-0620: smbd doesn't pick up group membership changes whe...

CVE-2025-0620 is fixed in 30 products on 1 platform, first by ctdb 2:4.21.4+dfsg-1ubuntu3.1, released June 3, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-0620
- Priority: Routine
- CVSS: 4.9 (Medium)
- EPSS: 0.0080
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 3, 2025

## Description

This update for samba fixes the following issues:  - CVE-2025-0620: smbd doesn't pick up group membership changes when re-authenticating an expired SMB session (bsc#1244136).  Other bugfixes:  - net ad join fails with 'Failed to join domain: failed to create kerberos keytab' (bsc#1238063).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ctdb Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [ctdb 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-ctdb-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | ldb-tools Ubuntu 25.04 (plucky) | 2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1 | [ldb-tools 2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-ldb-tools-2-2.10.0-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libldb2 Ubuntu 25.04 (plucky) | 2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1 | [libldb2 2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libldb2-2-2.10.0-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libnss-winbind Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [libnss-winbind 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-winbind-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libpam-winbind Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [libpam-winbind 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libpam-winbind-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libsmbclient0 Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [libsmbclient0 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libsmbclient0-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libtalloc2 Ubuntu 25.04 (plucky) | 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1 | [libtalloc2 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libtalloc2-2-2.4.2-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libtdb1 Ubuntu 25.04 (plucky) | 2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1 | [libtdb1 2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libtdb1-2-1.4.12-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libtevent0t64 Ubuntu 25.04 (plucky) | 2:0.16.1+samba4.21.4+dfsg-1ubuntu3.1 | [libtevent0t64 2:0.16.1+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libtevent0t64-2-0.16.1-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | libwbclient0 Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [libwbclient0 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libwbclient0-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | python3-ldb Ubuntu 25.04 (plucky) | 2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1 | [python3-ldb 2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-python3-ldb-2-2.10.0-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | python3-samba Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [python3-samba 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-python3-samba-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | python3-talloc Ubuntu 25.04 (plucky) | 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1 | [python3-talloc 2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-python3-talloc-2-2.4.2-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | python3-tdb Ubuntu 25.04 (plucky) | 2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1 | [python3-tdb 2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-python3-tdb-2-1.4.12-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | registry-tools Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [registry-tools 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-registry-tools-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba Debian 13.5 (trixie) | 2:4.22.2+dfsg-1 | [DEBIAN-CVE-2025-0620](https://patchblox.com/security/data/fix/linux/debian-cve-2025-0620.md) | Jun 6, 2025 |
| Linux | samba Debian 14 | 2:4.22.2+dfsg-1 | [DEBIAN-CVE-2025-0620](https://patchblox.com/security/data/fix/linux/debian-cve-2025-0620.md) | Jun 6, 2025 |
| Linux | samba Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba sles 15.7 | 4.21.6+git.402.80f493f530f-150700.3.3.1 | [SUSE-SU-2025:02230-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-02230-1.md) | Jul 4, 2025 |
| Linux | samba-ad-dc Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-ad-dc 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-ad-dc-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-ad-provision Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-ad-provision 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-ad-provision-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-common Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-common 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-common-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-common-bin Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-common-bin 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-common-bin-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-dsdb-modules Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-dsdb-modules 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-dsdb-modules-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-libs Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-libs 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-libs-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-testsuite Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-testsuite 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-testsuite-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-vfs-ceph Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-vfs-ceph 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-vfs-ceph-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-vfs-glusterfs Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-vfs-glusterfs 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-vfs-glusterfs-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-vfs-modules Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-vfs-modules 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-vfs-modules-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | samba-vfs-modules-extra Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [samba-vfs-modules-extra 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-samba-vfs-modules-extra-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | smbclient Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [smbclient 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-smbclient-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | tdb-tools Ubuntu 25.04 (plucky) | 2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1 | [tdb-tools 2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-tdb-tools-2-1.4.12-samba4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |
| Linux | winbind Ubuntu 25.04 (plucky) | 2:4.21.4+dfsg-1ubuntu3.1 | [winbind 2:4.21.4+dfsg-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-winbind-2-4.21.4-dfsg-1ubuntu3.1.md) | Jun 3, 2025 |

---

Data as of 2026-11-08T06:59:42Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

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.