CVE-2024-6387

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

HIGH
8.1
CVSS Score
Published: July 1, 2024 at 12:37 PM UTC
Updated: October 15, 2026 at 03:17 AM UTC
61 products affected across 14 vendorsmacOSDebian LinuxUbuntu Linux· also runs on 28 platforms

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.1
Exploit prediction
EPSS 100%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

12.0 ≤ v < 12.7.613.0 ≤ v < 13.6.814.0 ≤ v < 14.6
Affected range stops below 12.7.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.6.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.6, so it looks safe — our inference, not a vendor statement
4.32.0 ≤ v ≤ 4.32.1f
All versions
netapp-500f (same device)
All versions
netapp-8300 (same device)
All versions
netapp-8700 (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (81)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:4312
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:4340
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:4389
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:4469
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:4474
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:4479
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2024:4484
VDB Entryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/security/cve/CVE-2024-6387

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHredhat
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-364CWE-362

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card