What is CVE-2022-40628?

CVE-2022-40628 is a critical-severity vulnerability in Tacitine En6200-Prime Quad-100, classified under Code Injection. CVSS score: 9.8/10. Published 2022-09-23.

How severe is CVE-2022-40628?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Tacitine En6200-Prime Quad-100

CVE-2022-40628

This vulnerability exists in Tacitine Firewall, all versions of EN6200-PRIME QUAD-35 and EN6200-PRIME QUAD-100 between 19.1.1 to 22.20.1 (inclusive), due to improper control of code generation in the Tacitine Firewall web-based management interface. An unauthenticated remote attacker could exploit this vulnerability by sending a specially crafted http request on the targeted device. Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary commands on the targeted device.

Vulnerability class: RCE (Remote Code Execution)

Published 2022-09-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.022 · change: +0.002

Affected products

Weakness classification (CWE)

CWE-94 — Code Injection

References

www.cert-in.org.in/s2cMainServlet (Third Party Advisory)
tacitine.com/newdownload/CVE-2022-40628.pdf (Vendor Advisory)

Frequently asked questions

What is CVE-2022-40628?: CVE-2022-40628 is a critical-severity vulnerability in Tacitine En6200-Prime Quad-100, classified under Code Injection. CVSS score: 9.8/10. Published 2022-09-23.
How severe is CVE-2022-40628?: Critical severity. CVSS v3 base score is 9.8 out of 10.