Google: net-misc/openssh: security update to 18244.291.63

medium Tenable Cloud Security Plugin ID 450816

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle
attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how
OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be
considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning
the attack complexity high. (CVE-2025-26465)

Solution

Update the net-misc/openssh library and its related packages to version 18244.291.63 or later.

Plugin Details

Severity: Medium

ID: 450816

Version: Revision 1.2

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.7

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2025-26465

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 6.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 2/11/2025

Reference Information

CVE: CVE-2025-26465

Detections

Analytics