---
id: CVE-2021-45024
title: >-
  ASG technologies ( A Rocket Software Company) ASG-Zena Cross Platform Server
  Enterprise Edition 4.2.1 is vulnerable to XML External Entity (XXE).
summary: >-
  ASG technologies ( A Rocket Software Company) ASG-Zena Cross Platform Server
  Enterprise Edition 4.2.1 is vulnerable to XML External Entity (XXE).
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-611
vendor: rocketsoftware
product: ags-zena
affected:
  - ags-zena = 4.2.1
published: '2022-06-17'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-45024'
references:
  - url: >-
      https://docs.rocketsoftware.com/bundle/ven1649700711249/page/ayk1652945111726.html
    label: cve@mitre.org
  - url: 'http://asg-zena.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://asg.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://docs.rocketsoftware.com/bundle/ven1649700711249/page/ayk1652945111726.html
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.0108
epssPercentile: 0.63657
ingestedAt: '2026-07-06T17:03:24.430Z'
---

## Overview

ASG technologies ( A Rocket Software Company) ASG-Zena Cross Platform Server Enterprise Edition 4.2.1 is vulnerable to XML External Entity (XXE).

## Affected

- `ags-zena = 4.2.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.