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CVE-2021-41617

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 program...

Published: Sep 26, 2021Updated: May 12, 2026 Sources: CVE List NVD BDU csafNVD-CWE-Other
NVD MITRE
7.0CVSSHIGH
EPSS Score
2.4%
Top 18.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-Other

Affected Products

UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Альт 8 СПАО «ИВК»
On-premOS
Operating Systems / linux-distro
ОСОН ОСнова ОnyxАО «НППКТ»
On-premOS
Operating Systems / linux-distro
canonical ltd.commercialGBOperating Systemsaka canonical
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ао «ивк»commercialRUOperating Systemsaka ivk
ао «нппкт»commercialRUOperating Systems
and 18 more affected products View all →

Exploitability

Official Patch Available

References

https://github.com/openssh/openssh-portable/commit/bf944e3794eff5413f2df1ef37cddf96918c6bde
github.com
https://github.com/openssh/openssh-portable/commit/f3cbe43e28fe71427d41cfe3a17125b972710455
github.com
https://nvd.nist.gov/vuln/detail/CVE-2021-41617
nvd.nist.gov
and 271 more references View all →

Timeline

Published
Sep 26, 2021
Last Updated
May 12, 2026

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