CVE-2016-8858
7.5
HIGH
CVSS 3.1
EPSS 31.2%
Description
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."
How to fix CVE-2016-8858
To remediate CVE-2016-8858, upgrade the affected package to a fixed version below.
- Debian/openssh—upgrade to 1:7.3p1-2 or later
Is CVE-2016-8858 being exploited?
Moderate — EPSS is 31.2%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 1:7.3p1-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |