Vulnerability Details : CVE-2016-8858

The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."
Published 2016-12-09 11:59:00
Updated 2024-04-11 00:56:27
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Threat overview for CVE-2016-8858

Top countries where our scanners detected CVE-2016-8858
Top open port discovered on systems with this issue 22
IPs affected by CVE-2016-8858 1,591,466
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2016-8858!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2016-8858

Probability of exploitation activity in the next 30 days: 78.35%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 98 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2016-8858

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.8
 HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
 NIST
7.5
 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
 NIST

CWE ids for CVE-2016-8858

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-8858

Products affected by CVE-2016-8858

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