CVE-2021-32581

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-08-05 · updated 2026-06-17
Weakness: CWE-295

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.

Affected products

Acronis Cyber Protect Cloud: before 15.0.27009 — fixed in 15.0.27009
Acronis Cyber Protection Agent: before 15.0.26653 — fixed in 15.0.26653
Acronis True Image: 2021, 2021-update_1, 2021-update_2, 2021-update_3, 2021-update_4

How to fix

Upgrade to a fixed version: Acronis Cyber Protect Cloud 15.0.27009; Acronis Cyber Protection Agent 15.0.26653. Check the vendor advisory for mitigations.

References

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