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Vulnerability record · CVE-2021-44204 · published 4 February 2022

CVE-2021-44204: Acronis true image improper authorization vulnerability

Acronis · True Image

Local privilege escalation via named pipe due to improper access control checks. The following products are affected: Acronis Cyber Protect 15 (Windows) before build 28035, Acronis Agent (Windows) before build 27147, Acronis Cyber Protect Home Office (Windows) before build 39612, Acronis True Image 2021 (Windows) before build 39287

7.8 CVSS 3.1 High EPSS 0.20% · top 91.5% CWE-285 · Improper authorization
7.8CVSS 3.1 base score, v2 4.6
0.20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Local privilege escalation via named pipe due to improper access control checks. The following products are affected: Acronis Cyber Protect 15 (Windows) before build 28035, Acronis Agent (Windows) before build 27147, Acronis Cyber Protect Home Office (Windows) before build 39612, Acronis True Image 2021 (Windows) before build 39287

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://security-advisory.acronis.com/advisories/SEC-2355 Vendor Advisory
https://security-advisory.acronis.com/advisories/SEC-2355 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-30411Acronis cyber protect vulnerabilitySensitive data disclosure and manipulation due to improper authentication. The following products are affected: Acronis Cyber Protect 16 (Linux, Wind…EPSS 0.80%10.0CVE-2025-30412Acronis cyber protect vulnerabilitySensitive data disclosure and manipulation due to improper authentication. The following products are affected: Acronis Cyber Protect 16 (Linux, Wind…EPSS 0.71%10.0CVE-2025-30416Acronis cyber protect missing authorization vulnerabilitySensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis Cyber Protect 16 (Linux, Window…EPSS 0.46%9.8CVE-2026-28710Acronis cyber protect vulnerabilitySensitive information disclosure and manipulation due to improper authentication. The following products are affected: Acronis Cyber Protect 17 (Linu…EPSS 0.61%9.1CVE-2024-49388Acronis cyber protect insecure direct object reference vulnerabilitySensitive information manipulation due to improper authorization. The following products are affected: Acronis Cyber Protect 16 (Linux, Windows) befo…EPSS 0.27%9.1CVE-2023-44208Acronis cyber protect home office missing authorization vulnerabilitySensitive information disclosure and manipulation due to missing authorization. The following products are affected: Acronis Cyber Protect Home Offic…EPSS 0.33%9.1CVE-2023-44206Acronis cyber protect insecure direct object reference vulnerabilitySensitive information disclosure and manipulation due to improper authorization. The following products are affected: Acronis Cyber Protect 15 (Linux…EPSS 0.82%9.1CVE-2023-44152Acronis cyber protect missing authentication for critical function vulnerabilitySensitive information disclosure and manipulation due to improper authentication. The following products are affected: Acronis Cyber Protect 15 (Linu…EPSS 0.57%

Source: NIST National Vulnerability Database (record CVE-2021-44204), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.