CVE-2024-6387
CVSS v3
8.1
HIGH
EPSS Score
99.5 %
exploit probability, as of 2026-10-03
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2024-07-01
- Last Modified
- 2026-08-31
- CERT-FR Advisory
- CERTFR-2024-ALE-009
- Exploit-DB
- EDB-52269
- CERT-FR Link
- CERTFR-2024-ALE-009
Frequently asked questions
What is CVE-2024-6387?
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.
Is CVE-2024-6387 actively exploited?
Active exploitation of CVE-2024-6387 has not been confirmed. Its EPSS score was 99.5% on 2026-10-03, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2024-6387?
CVE-2024-6387 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
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