Description
For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SUSE | SUSE Linux Enterprise Micro 5.3 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
| SUSE | SUSE Linux Enterprise Micro 5.4 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
| SUSE | SUSE Linux Enterprise Micro 5.5 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
| SUSE | SUSE Linux Enterprise Module for Basesystem 15 SP6 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
| SUSE | SUSE Linux Enterprise Server 15 SP6 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
| SUSE | SUSE Linux Enterprise Desktop 15 SP6 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
| SUSE | SUSE Linux Enterprise Server for SAP Applications 15 SP6 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
| SUSE | SUSE Linux Enterprise High Performance Computing 15 SP6 | ? – < 4.6.2-150000.5.8.1 | 4.6.2-150000.5.8.1 |
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 | screen | 4.9.1-3 | — |
| Debian 13 | screen | 4.9.1-3 | — |
| Debian 12 | screen | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | screen | 4.9.1-1ubuntu1 | USN-7978-1 |
| Ubuntu 22.04 LTS | screen | 4.9.0-1ubuntu0.1 | USN-7978-1 |
| Ubuntu 20.04 LTS | screen | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | screen | No fix yet | — |
| Ubuntu Pro 16.04 LTS | screen | No fix yet | — |
| Ubuntu Pro 14.04 LTS | screen | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | screen | 4.6.2-150000.5.8.1 | SUSE-SU-2025:02016-1 |
| SLES 15 SP6 | screen | 4.6.2-150000.5.8.1 | SUSE-SU-2025:02016-1 |
| SLES 12 SP5 | screen | 4.0.4-23.9.1 | SUSE-SU-2025:02186-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.5 | screen | 4.6.2-150000.5.8.1 | SUSE-SU-2025:02016-1 |
| SLE Micro 5.4 | screen | 4.6.2-150000.5.8.1 | SUSE-SU-2025:02016-1 |
| SLE Micro 5.3 | screen | 4.6.2-150000.5.8.1 | SUSE-SU-2025:02016-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | screen | 4.9.1-5.1 | openSUSE-SU-2025:15164-1 |
| openSUSE Leap 15.6 | screen | 4.6.2-150000.5.8.1 | SUSE-SU-2025:02016-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | screen | 5.0.1-r0 | — |
| Alpine v3.23 | screen | 5.0.1-r0 | — |
| Alpine v3.22 | screen | 5.0.1-r0 | — |
| Alpine v3.21 | screen | 5.0.1-r0 | — |
| Alpine v3.20 | screen | 4.9.1_git20250512-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | screen | 4.9.1_git20250512-r0 | — |
| Alpine v3.18 | screen | 4.9.1_git20250512-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | screen | 4.8.0-5.amzn2023.0.4 | ALAS2023-2025-1006 |
| Amazon Linux 2 | screen | 4.1.0-0.27.20120314git3c2946.amzn2.0.2 | ALAS2-2025-2878 |
Advisories 8
- WID-SEC-2025-1034 screen: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 26, 2026
- USN-7978-1 screen vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- openSUSE-SU-2025:15164-1 screen-4.9.1-5.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02186-1 Security update for screen SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02016-1 Security update for screen SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1850 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 17, 2025
- ALAS2-2025-2878 Moderate: screen security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 12, 2025
- ALAS2023-2025-1006 Moderate: screen security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 10, 2025