Detections
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Echo: openssh: security update to 1:10.3p1-1

medium Tenable Cloud Security Plugin ID 463507

Description

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

 - OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in
 PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.
 (CVE-2026-35387)

Solution

Update the openssh library and its related packages to version 1:10.3p1-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-35387

Plugin Details

Severity: Medium

ID: 463507

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.04

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2026-35387

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/3/2026

Vulnerability Publication Date: 4/2/2026

Reference Information

CVE: CVE-2026-35387

IAVA: 2026-A-0296-S