CVE-2021-22523

Name: CVE-2021-22523
Creator: NVD / NIST
Published: 2021-07-22T12:15:07.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.6/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2021-22523 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. XML External Entity vulnerability in Micro Focus Verastream Host Integrator, affecting version 7.8 Update 1 and earlier versions. The vulnerability could allow the control of web browser and hijacking user sessions.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

XML External Entity vulnerability in Micro Focus Verastream Host Integrator, affecting version 7.8 Update 1 and earlier versions. The vulnerability could allow the control of web browser and hijacking user sessions.

Metrics

CVSS 3.1

7.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L

EPSS Probability

0.81%

52.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-611

Affected Software

Vendor	Product	Versions
Microfocus	Verastream Host Integrator	< 7.8
Microfocus	Verastream Host Integrator	7.8

References

Timeline

Published: Jul 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22523?

How severe is CVE-2021-22523?

CVE-2021-22523 has a CVSS score of 7.6/10 (HIGH severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22523?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22523?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST