CVE-2021-25269

Name: CVE-2021-25269
Creator: NVD / NIST
Published: 2021-11-26T15:15:07.493+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2021-25269 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. A local administrator could prevent the HMPA service from starting despite tamper protection using an unquoted service path vulnerability in the HMPA component of Sophos Intercept X Advanced and Sophos Intercept X Advanced for Server before version 2.0.23, as well as Sophos Exploit Prevention before version 3.8.3.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A local administrator could prevent the HMPA service from starting despite tamper protection using an unquoted service path vulnerability in the HMPA component of Sophos Intercept X Advanced and Sophos Intercept X Advanced for Server before version 2.0.23, as well as Sophos Exploit Prevention before version 3.8.3.

Metrics

CVSS 3.1

4.4/10

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

EPSS Probability

0.24%

15.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-428

Affected Software

Vendor	Product	Versions
Sophos	Exploit Prevention	< 3.8.3
Sophos	Intercept X Endpoint	< 2.0.23
Sophos	Intercept X For Server	< 2.0.23

References

https://www.sophos.com/en-us/security-advisories/sophos-sa-20211126-ixa-hmpa-local-dosVendor Advisory
https://www.sophos.com/en-us/security-advisories/sophos-sa-20211126-ixa-hmpa-local-dosVendor Advisory

Timeline

Published: Nov 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25269?

How severe is CVE-2021-25269?

CVE-2021-25269 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25269?

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-2021-25269?

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

Scan your code now

Source: NVD / NIST