CVE-2021-41617
HIGH 7.0EPSS 2.5%
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 v3.1 NVD
- 7.0 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 4.4 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P - EPSS
- 2.54% chance of exploitation in the next 30 days, 85th percentile
- Published
- 2021-09-26
- Updated
- 2026-10-14
Proof-of-concept exploits (1)
- AdnanApriliyansyahh/CVE-2021-416172★ · 2025-09-02
Security advisories
- https://www.openssh.com/security.html
- https://www.openssh.com/txt/release-8.8
- https://bugzilla.suse.com/show_bug.cgi?id=1190975
- https://security.netapp.com/advisory/ntap-20211014-0004
- https://www.openwall.com/lists/oss-security/2021/09/26/1
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.starwindsoftware.com/security/sw-20220805-0001