Description
Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows Server 2008 Service Pack 2 | - | — |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | - | — |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | - | — |
| Microsoft | Windows Server 2008 Service Pack 2 | - | — |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | - | — |
| Microsoft | Windows Server 2012 | - | — |
| Microsoft | Windows Server 2012 (Server Core installation) | - | — |
| Microsoft | Windows Server 2012 R2 | - | — |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | - | — |
| Microsoft | Windows Server 2016 | - | — |
| Microsoft | Windows Server 2016 (Server Core installation) | - | — |
| Microsoft | Windows Server 2019 | - | — |
| Microsoft | Windows Server 2019 (Server Core installation) | - | — |
| Microsoft | Windows Server 2022 | - | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | samba | 2:4.17.4+dfsg-1 | — |
| Debian 13 | samba | 2:4.17.4+dfsg-1 | — |
| Debian 12 | samba | 2:4.17.4+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | samba | 2:4.15.13+dfsg-0ubuntu1 | USN-5822-1 |
| Ubuntu 20.04 LTS | samba | 2:4.15.13+dfsg-0ubuntu0.20.04.1 | USN-5936-1, USN-5822-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | samba | No fix yet | — |
| Ubuntu Pro 16.04 LTS | samba | No fix yet | — |
| Ubuntu Pro 14.04 LTS | samba | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | samba | 4.15.13+git.591.ab36624310c-150400.3.19.1 | SUSE-SU-2023:0160-1 |
| SLES 15 SP3 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SLES 15 SP2 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0163-1 |
| SLES 15 SP1 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
| SLES 12 SP5 | samba | 4.15.13+git.534.0d9f8ece26-3.77.1 | SUSE-SU-2023:0164-1 |
Show 22 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SLES 12 SP2 | samba | 4.4.2-38.55.1 | SUSE-SU-2023:0122-1 |
| SLES 2 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SLES for SAP 15 SP3 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SLES for SAP 15 SP2 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0163-1 |
| SLES for SAP 15 SP1 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
| SLES for SAP 12 SP5 | samba | 4.15.13+git.534.0d9f8ece26-3.77.1 | SUSE-SU-2023:0164-1 |
| SLES for SAP 12 SP4 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SLE Real Time 15 SP3 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SLE Micro 5.3 | samba | 4.15.13+git.591.ab36624310c-150400.3.19.1 | SUSE-SU-2023:0160-1 |
| SLE Micro 5.2 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SLE HPC 15 SP3 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SLE HPC 15 SP2 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0163-1 |
| SLE HPC 15 SP1 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
| SUSE OpenStack Cloud Crowbar 9 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SUSE OpenStack Cloud 9 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SUSE Manager Server 4.2 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SUSE Manager Retail Branch Server 4.2 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SUSE Manager Proxy 4.2 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SUSE Enterprise Storage 7.1 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
| SUSE Enterprise Storage 7 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0620-1, SUSE-SU-2023:0163-1 |
| SUSE Enterprise Storage 6 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.17.4+git.300.305b22bfce-1.1 | openSUSE-SU-2024:12587-1 |
| openSUSE Leap 15.4 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1, SUSE-SU-2023:0163-1, SUSE-SU-2023:0160-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | samba | 4.15.13+git.591.ab36624310c-150400.3.19.1 | SUSE-SU-2023:0160-1 |
| openSUSE Leap Micro 5.2 | samba | 4.15.13+git.540.fab3b2a46c6-150300.3.46.1 | SUSE-SU-2023:0014-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.16 | samba | 4.15.13-r0 | — |
| Alpine v3.15 | samba | 4.15.13-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | samba +29 | 2:4.17.5-0.amzn2023.0.2 | ALAS2023-2023-032 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | samba | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | libauth-samba | 4.22.0-r0 | — |
Advisories 14
- USN-5936-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-5822-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2023:0620-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0163-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12587-1 ctdb-4.17.4+git.300.305b22bfce-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0126-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0160-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0164-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0014-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0222-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-2365 Samba: Mehrere Schwachstellen ermöglichen Privilegieneskalation BSI CERT-Bund (WID) · Jun 29, 2025
- SUSE-SU-2023:0122-1 Security update for samba SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2023-2023-032 Important: samba security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 15, 2024
- MSRC-CVE-2022-37966 Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability Microsoft Security Response Center · Nov 17, 2022
References
- Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability vendor-advisory patch