What is CVE-2021-32577?

CVE-2021-32577 is a high-severity vulnerability in Acronis True Image, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2021-08-05.

How severe is CVE-2021-32577?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Acronis True Image

CVE-2021-32577

Acronis True Image prior to 2021 Update 5 for Windows allowed local privilege escalation due to insecure folder permissions.

Published 2021-08-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.9th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Acronis True Image — versions 2021

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

kb.acronis.com/content/68413 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-32577?: CVE-2021-32577 is a high-severity vulnerability in Acronis True Image, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2021-08-05.
How severe is CVE-2021-32577?: High severity. CVSS v3 base score is 7.8 out of 10.