CVE-2021-41617sshd 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.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 14 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.0 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
openbsd openssh openbsd:openssh | from 6.2 before 8.8 | NVD |
fedoraproject fedora fedoraproject:fedora | 33; 34; 35 | NVD |
netapp active_iq_unified_manager netapp:active_iq_unified_manager | all versions | NVD |
netapp clustered_data_ontap netapp:clustered_data_ontap | all versions | NVD |
netapp hci_management_node netapp:hci_management_node | all versions | NVD |
netapp ontap_select_deploy_administration_utility netapp:ontap_select_deploy_administration_utility | all versions | NVD |
netapp solidfire netapp:solidfire | all versions | NVD |
netapp aff_a250_firmware netapp:aff_a250_firmware | all versions | NVD |
netapp aff_500f_firmware netapp:aff_500f_firmware | all versions | NVD |
oracle http_server oracle:http_server | 12.2.1.2.0; 12.2.1.3.0; 12.2.1.4.0 | NVD |
oracle zfs_storage_appliance_kit oracle:zfs_storage_appliance_kit | 8.8 | NVD |
starwindsoftware starwind_virtual_san starwindsoftware:starwind_virtual_san | v8r13 | NVD |
References
- https://www.openssh.com/security.htmlvendor-advisory
- https://www.openwall.com/lists/oss-security/2021/09/26/1mailing-list, third-party-advisory
- https://www.openssh.com/txt/release-8.8release-notes, vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XJIONMHMKZDTMH6BQR5TNLF2WDCGWED/vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W44V2PFQH5YLRN6ZJTVRKAD7CU6CYYET/vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KVI7RWM2JLNMWTOFK6BDUSGNOIPZYPUT/vendor-advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlpatch, third-party-advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1190975issue-tracking, patch, third-party-advisory
- https://security.netapp.com/advisory/ntap-20211014-0004/third-party-advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlthird-party-advisory
- https://www.starwindsoftware.com/security/sw-20220805-0001/third-party-advisory
- https://www.tenable.com/plugins/nessus/154174
- https://www.debian.org/security/2023/dsa-5586vendor-advisory
- https://lists.debian.org/debian-lts-announce/2023/12/msg00017.htmlmailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.