What is CVE-2022-43516?

CVE-2022-43516 is a medium-severity vulnerability in Microsoft Windows Firewall, classified under CWE-16. CVSS score: 6.5/10. Published 2022-12-05.

How severe is CVE-2022-43516?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Microsoft Windows Firewall

CVE-2022-43516

A Firewall Rule which allows all incoming TCP connections to all programs from any source and to all ports is created in Windows Firewall after Zabbix agent installation (MSI)

Published 2022-12-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.010 (62.4th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 62.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.001

Affected products

Microsoft Windows Firewall
Zabbix — versions 6.0.12, 6.2.6
Zabbix Agent 2 (Msi Packages) — versions Oct. 29, 2022 - Dec 2, 2022, Dec 3, 2022
Zabbix Agent (Msi Packages) — versions Oct. 29, 2022 - Dec 2, 2022, Dec 3, 2022

Weakness classification (CWE)

CWE-16

References

support.zabbix.com/browse/ZBX-22002 (Exploit, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-43516?: CVE-2022-43516 is a medium-severity vulnerability in Microsoft Windows Firewall, classified under CWE-16. CVSS score: 6.5/10. Published 2022-12-05.
How severe is CVE-2022-43516?: Medium severity. CVSS v3 base score is 6.5 out of 10.