What is CVE-2022-3340?

CVE-2022-3340 is a medium-severity vulnerability in Trellix Intrusion Prevention System Manager, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.9/10. Published 2022-11-04.

How severe is CVE-2022-3340?

Medium severity. CVSS v3 base score is 5.9 out of 10.

XXE in Trellix Intrusion Prevention System Manager

CVE-2022-3340

XML External Entity (XXE) vulnerability in Trellix IPS Manager prior to 10.1 M8 allows a remote authenticated administrator to perform XXE attack in the administrator interface part of the interface, which allows a saved XML configuration file to be imported.

Vulnerability class: XXE (XML External Entity)

Published 2022-11-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.006 (45.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Trellix Intrusion Prevention System Manager — versions 10.1
Trellix Ips Manager — versions unspecified

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

kcm.trellix.com/corporate/index (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-3340?: CVE-2022-3340 is a medium-severity vulnerability in Trellix Intrusion Prevention System Manager, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.9/10. Published 2022-11-04.
How severe is CVE-2022-3340?: Medium severity. CVSS v3 base score is 5.9 out of 10.