Description
sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.
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 | openssh | 1:8.7p1-1 | — |
| Debian 13 | openssh | 1:8.7p1-1 | — |
| Debian 12 | openssh | 1:8.7p1-1 | — |
| Debian 10 | openssh | 1:7.9p1-10+deb10u4 | DLA-3694-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | openssh-ssh1 | No fix yet | — |
| Ubuntu 26.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu 25.10 | openssh-ssh1 | No fix yet | — |
| Ubuntu 24.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu 22.04 LTS | openssh | 1:8.9p1-3ubuntu0.6 | USN-6565-1 |
| Ubuntu 22.04 LTS | openssh-ssh1 | No fix yet | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | openssh | 1:8.2p1-4ubuntu0.11 | USN-6565-1 |
| Ubuntu 20.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu 18.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu Pro FIPS 20.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | openssh | 1:8.2p1-4ubuntu0.fips.0.11 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | openssh | 1:7.2p2-4ubuntu2.fips.2.10.3 | — |
| Ubuntu Pro 18.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro 16.04 LTS | openssh | 1:7.2p2-4ubuntu2.10+esm2 | USN-5666-1 |
| Ubuntu Pro 14.04 LTS | openssh | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | openssh +6 | 8.0p1-13.el8 | RHSA-2022:2013 |
| RHEL 8 | pam_ssh_agent_auth | 0.10.3-7.13.el8 | RHSA-2022:2013 |
| RHEL 7 | openssh +7 | 7.4p1-22.el7_9 | RHSA-2021:4782 |
| RHEL 7 | pam_ssh_agent_auth | 0.10.3-2.22.el7_9 | RHSA-2021:4782 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | openssh +6 | 8.0p1-13.el8 | ALSA-2022:2013 |
| AlmaLinux 8 | pam_ssh_agent_auth | 0.10.3-7.13.el8 | ALSA-2022:2013 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | openssh | 8.0p1-13.el8 | RLSA-2022:2013 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | openssh +1 | 8.4p1-3.6.1 | SUSE-SU-2021:3950-1 |
| SLES 15 SP2 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SLES 15 SP1 | openssh +1 | 7.9p1-6.28.1 | SUSE-SU-2021:3947-1 |
| SLES 15 | openssh +1 | 7.6p1-9.44.1 | SUSE-SU-2021:3887-1 |
| SLES 12 SP5 | openssh +1 | 7.2p2-78.13.1 | SUSE-SU-2021:3875-1 |
Show 27 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | openssh +1 | 7.2p2-78.13.1 | SUSE-SU-2021:3875-1 |
| SLES 12 SP3 | openssh +1 | 7.2p2-74.60.1 | SUSE-SU-2021:3951-1 |
| SLES 12 SP2 | openssh +1 | 7.2p2-74.60.1 | SUSE-SU-2021:3951-1 |
| SLES 11 SP4 | openssh +1 | 6.6p1-36.26.1 | SUSE-SU-2021:14847-1 |
| SLES 11 | openssh-openssl1 | 6.6p1-19.12.1 | SUSE-SU-2021:14870-1 |
| SLES for SAP 15 SP2 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SLES for SAP 15 SP1 | openssh +1 | 7.9p1-6.28.1 | SUSE-SU-2021:3947-1 |
| SLES for SAP 15 | openssh +1 | 7.6p1-9.44.1 | SUSE-SU-2021:3887-1 |
| SLES for SAP 12 SP5 | openssh +1 | 7.2p2-78.13.1 | SUSE-SU-2021:3875-1 |
| SLES for SAP 12 SP4 | openssh +1 | 7.2p2-78.13.1 | SUSE-SU-2021:3875-1 |
| SLES for SAP 12 SP3 | openssh +1 | 7.2p2-74.60.1 | SUSE-SU-2021:3951-1 |
| SLE Real Time 15 SP2 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SLE Micro 5.1 | openssh | 8.4p1-3.6.1 | SUSE-SU-2021:3950-1 |
| SLE Micro 5.0 | openssh | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SLE HPC 15 SP2 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SLE HPC 15 SP1 | openssh +1 | 7.9p1-6.28.1 | SUSE-SU-2021:3947-1 |
| SLE HPC 15 | openssh +1 | 7.6p1-9.44.1 | SUSE-SU-2021:3887-1 |
| SUSE OpenStack Cloud Crowbar 9 | openssh +1 | 7.2p2-78.13.1 | SUSE-SU-2021:3875-1 |
| SUSE OpenStack Cloud Crowbar 8 | openssh +1 | 7.2p2-74.60.1 | SUSE-SU-2021:3951-1 |
| SUSE OpenStack Cloud 9 | openssh +1 | 7.2p2-78.13.1 | SUSE-SU-2021:3875-1 |
| SUSE OpenStack Cloud 8 | openssh +1 | 7.2p2-74.60.1 | SUSE-SU-2021:3951-1 |
| SUSE Manager Server 4.1 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SUSE Manager Retail Branch Server 4.1 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SUSE Manager Proxy 4.1 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SUSE HPE Helion OpenStack 8 | openssh +1 | 7.2p2-74.60.1 | SUSE-SU-2021:3951-1 |
| SUSE Enterprise Storage 7 | openssh +1 | 8.1p1-5.21.1 | SUSE-SU-2022:0805-1 |
| SUSE Enterprise Storage 6 | openssh +1 | 7.9p1-6.28.1 | SUSE-SU-2021:3947-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssh | 9.6p1-3.1 | openSUSE-SU-2024:13842-1 |
| openSUSE Leap 15.3 | openssh +1 | 8.4p1-3.6.1 | openSUSE-SU-2021:3950-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openssh | 8.8_p1-r0 | — |
| Alpine v3.23 | openssh | 8.8_p1-r0 | — |
| Alpine v3.22 | openssh | 8.8_p1-r0 | — |
| Alpine v3.21 | openssh | 8.8_p1-r0 | — |
| Alpine v3.20 | openssh | 8.8_p1-r0 | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | openssh | 8.8_p1-r0 | — |
| Alpine v3.18 | openssh | 8.8_p1-r0 | — |
| Alpine v3.17 | openssh | 8.8_p1-r0 | — |
| Alpine v3.16 | openssh | 8.8_p1-r0 | — |
| Alpine v3.15 | openssh | 8.8_p1-r0 | — |
| Alpine v3.14 | openssh | 8.6_p1-r3 | — |
| Alpine v3.13 | openssh | 8.4_p1-r4 | — |
| Alpine v3.12 | openssh | 8.3_p1-r3 | — |
| Alpine v3.11 | openssh | 8.1_p1-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | openssh +7 | 7.4p1-22.amzn2.0.1 | ALAS2-2022-1748 |
| Amazon Linux 2 | pam_ssh_agent_auth | 0.10.3-2.22.amzn2.0.1 | ALAS2-2022-1748 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | openssh +6 | 8.0p1-13.el8 | ELSA-2022-2013 |
| Oracle Linux 8 | pam_ssh_agent_auth | 0.10.3-7.13.el8 | ELSA-2022-2013 |
| Oracle Linux 7 | openssh +7 | 7.4p1-22.0.1.el7_9 | ELSA-2021-9575, ELSA-2021-4782 |
| Oracle Linux 7 | pam_ssh_agent_auth | 0.10.3-2.22.0.1.el7_9 | ELSA-2021-9575, ELSA-2021-4782 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
AdnanApriliyansyahh/CVE-2021-41617 ★ 2 · Sep 2, 2025
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 35
- SSA-457936 SSA-457936: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.7 Siemens ProductCERT · Nov 10, 2026
- ALSA-2022:2013 Moderate: openssh security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ICSA-26-295-11 Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP CISA ICS & IT advisories · Oct 22, 2026
- SSA-019113 SSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6 Siemens ProductCERT · Oct 13, 2026
- SSA-082556 SSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5 Siemens ProductCERT · Oct 13, 2026
- ICSA-26-209-04 Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP CISA ICS & IT advisories · Jul 28, 2026
- WID-SEC-2022-0534 OpenSSH: Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Jul 13, 2026
- RHSA-2022:2013 Red Hat Security Advisory: openssh security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2021:4782 Red Hat Security Advisory: openssh security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5666-1 openssh vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-6565-1 openssh vulnerabilities Ubuntu Security Notices (USN) · May 29, 2026
- ICSA-25-162-05 Siemens SIMATIC S7-1500 CPU family CISA ICS & IT advisories · May 14, 2026
- DLA-3694-1 openssh - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:2013 Moderate: openssh security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2021:3947-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0805-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3951-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13842-1 openssh-9.6p1-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3875-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:3950-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:14847-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:14870-1 Security update for openssh-openssl1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3950-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3887-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SCA-2025-0011 Vulnerabilities affecting Endress+Hauser SSG-E210GC SICK PSIRT · Oct 2, 2025
- SCA-2025-0009 Vulnerabilities affecting SICK TDC-E210GC SICK PSIRT · Aug 1, 2025
- NCSC-2025-0187 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Jun 10, 2025
- WID-SEC-2023-0426 IBM Spectrum Protect: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 6, 2025
- WID-SEC-2024-1082 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 9, 2024
- WID-SEC-2023-1969 HPE Fabric OS: Mehrere Schwachstellen ermöglichen Privilegieneskalation BSI CERT-Bund (WID) · Aug 6, 2023
- WID-SEC-2022-0676 Juniper Junos Space: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 11, 2023
- ELSA-2022-2013 Moderate: openssh security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 17, 2022
- ALAS2-2022-1748 Moderate: openssh security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 9, 2022
- ELSA-2021-9575 Moderate: openssh security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 7, 2021
- ELSA-2021-4782 Moderate: openssh security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 24, 2021
References
- https://www.openssh.com/security.html
- https://www.openwall.com/lists/oss-security/2021/09/26/1
- https://www.openssh.com/txt/release-8.8
- FEDORA-2021-1f7339271d vendor-advisory
- FEDORA-2021-f8df0f8563 vendor-advisory
- FEDORA-2021-fa0e94198f vendor-advisory
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://bugzilla.suse.com/show_bug.cgi?id=1190975
- https://security.netapp.com/advisory/ntap-20211014-0004/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.starwindsoftware.com/security/sw-20220805-0001/
- https://www.tenable.com/plugins/nessus/154174
- DSA-5586 vendor-advisory
- [debian-lts-announce] 20231226 [SECURITY] [DLA 3694-1] openssh security update mailing-list