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FreeBSD : znc -- multiple vulnerabilities (b7ae786a-af80-11f1-9800-641c67a117d8)

medium Nessus Plugin ID 345467

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 multiple vulnerabilities as referenced in the b7ae786a-af80-11f1-9800-641c67a117d8 advisory.

 ZNC reports:
 CVE-2026-82373: Use-after-free when unloading modules, triggered by unprivileged users. To mitigate, set DenyLoadMod to true.
 CVE-2026-82374: Null pointer dereference in crypt module, triggered by IRC server.
 CVE-2020-11022, CVE-2020-11023: Updated the old bundled vulnerable version of jQuery to 3.5.1.

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

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

Solution

Update the affected packages.

See Also

https://github.com/znc/znc/releases/tag/znc-1.10.3

https://wiki.znc.in/ChangeLog/1.10.3

http://www.nessus.org/u?28e892c3

Plugin Details

Severity: Medium

ID: 345467

File Name: freebsd_pkg_b7ae786aaf8011f19800641c67a117d8.nasl

Version: 1.1

Type: Local

Published: 9/13/2026

Updated: 9/13/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

Percentile: 96.42

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.6

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

CVSS Score Source: CVE-2020-11023

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:znc

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/13/2026

Vulnerability Publication Date: 4/29/2020

CISA Known Exploited Vulnerability Due Dates: 2/13/2025

Reference Information

CVE: CVE-2020-11022, CVE-2020-11023, CVE-2026-82373, CVE-2026-82374