FreeBSD : RusTLS FFI -- plaintext TLS handshake vulnerability (ff969b25-b97b-11f1-b09d-8447094a420f)

high Nessus Plugin ID 350788

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 ff969b25-b97b-11f1-b09d-8447094a420f advisory.

The RusTLS project reports:
TLS 1.3 handshake message processing could allow a broken peer to send plaintext handshake messages where an encrypted one is expected without rustls rejecting the connection

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.

Plugin Details

Severity: High

ID: 350788

File Name: freebsd_pkg_ff969b25b97b11f1b09d8447094a420f.nasl

Version: 1.1

Type: Local

Family: FreeBSD Local Security Checks

Published: 9/26/2026

Updated: 9/26/2026

Supported Sensors: Nessus

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:rustls-ffi

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/26/2026

Vulnerability Publication Date: 9/26/2026

Detections

Analytics