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High 8.1Published Jul 1, 2024

CVE-2024-6387Openssh: regresshion - race condition in ssh allows rce/dos

Updated under an hour ago ()

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It affects Red Hat Enterprise Linux 9 and 58 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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A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.

CVSS
8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-364
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
redhat
NVD analysis
Modified
Record last updated
Oct 14, 2026
First seen by InfoSec Signals
Oct 14, 2026

Affected products

Affected products
Red Hat Red Hat Enterprise Linux 9
redhat:enterprise_linux
from 0:8.7p1-38.el9_4.1 not affected
CNA record
from 0:8.7p1-12.el9_0.1 not affected
CNA record
from 0:8.7p1-30.el9_2.4 not affected
CNA record
from 413.92.202407091321-0 not affected
CNA record
5
CNA record
Siemens Industrial Edge Management OS (IEM-OS)
siemens:industrial_edge_management_os_iem_os (from the name)
all versions
CISA ADP
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 SINAMICS IIoT module
siemens:sinamics_iiot_module (from the name)
before V1.0 HF1
CISA ADP
Siemens SINEMA Remote Connect Server
siemens:sinema_remote_connect_server (from the name)
before V3.2 SP2
CISA ADP

References

References

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.

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