CVE-2021-32581

Name: CVE-2021-32581
Creator: NVD / NIST
Published: 2021-08-05T20:15:09.1+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2021-32581 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Acronis True Image prior to 2021 Update 4 for Windows, Acronis True Image prior to 2021 Update 5 for Mac, Acronis Agent prior to build 26653, Acronis Cyber Protect prior to build 27009 did not implement SSL certificate validation.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

Acronis True Image prior to 2021 Update 4 for Windows, Acronis True Image prior to 2021 Update 5 for Mac, Acronis Agent prior to build 26653, Acronis Cyber Protect prior to build 27009 did not implement SSL certificate validation.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.73%

49.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Acronis	Cyber Protect Cloud	< 15.0.27009
Acronis	Cyber Protection Agent	< 15.0.26653
Acronis	True Image	2021

References

https://kb.acronis.com/content/68413Vendor Advisory
https://kb.acronis.com/content/68419Vendor Advisory
https://kb.acronis.com/content/68648Vendor Advisory
https://kb.acronis.com/content/68413Vendor Advisory
https://kb.acronis.com/content/68419Vendor Advisory
https://kb.acronis.com/content/68648Vendor Advisory

Timeline

Published: Aug 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32581?

How severe is CVE-2021-32581?

CVE-2021-32581 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32581?

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-2021-32581?

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

Scan your code now

Source: NVD / NIST