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FreeBSD : OpenSSL -- key agreement vulnerability (ee1e6a24-1eeb-11f1-81da-8447094a420f)

high Nessus Plugin ID 302192

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the ee1e6a24-1eeb-11f1-81da-8447094a420f advisory.

 The OpenSSL project reports:
 TLS 1.3 server may choose unexpected key agreement group (Low) An OpenSSL TLS 1.3 server may fail to negotiate the expected preferred key exchange group when its key exchange group configuration includes the default by using the DEFAULT keyword.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://openssl-library.org/news/secadv/20260313.txt

http://www.nessus.org/u?3444cb2e

Plugin Details

Severity: High

ID: 302192

File Name: freebsd_pkg_ee1e6a241eeb11f181da8447094a420f.nasl

Version: 1.2

Type: Local

Published: 3/13/2026

Updated: 3/18/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-2673

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:openssl35, p-cpe:/a:freebsd:freebsd:openssl36, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 3/13/2026

Vulnerability Publication Date: 3/13/2026

Reference Information

CVE: CVE-2026-2673