How severe is CVE-2021-44204?

CVE-2021-44204 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-44204 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44204?

CVE-2021-44204 primarily affects Acronis True Image. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-44204?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-44204 published?

CVE-2021-44204 was published on 2022-02-04 and last updated on 2026-06-17.

CVE-2021-44204

CVE-2021-44204 is a high-severity vulnerability in Acronis True Image with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-285
Affected product: Acronis True Image
Published: 2022-02-04
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2021-44204?: 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
How severe is CVE-2021-44204?: CVE-2021-44204 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-44204 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44204?: CVE-2021-44204 primarily affects Acronis True Image. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-44204?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-44204 published?: CVE-2021-44204 was published on 2022-02-04 and last updated on 2026-06-17.

References

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

Affected products (11)

cpe:2.3:a:acronis:true_image:2021:*:*:*:*:-:*:*
cpe:2.3:a:acronis:true_image:2021:update_1:*:*:*:windows:*:*
cpe:2.3:a:acronis:true_image:2021:update_2:*:*:*:windows:*:*
cpe:2.3:a:acronis:true_image:2021:update_3:*:*:*:windows:*:*
cpe:2.3:a:acronis:true_image:2021:update_4:*:*:*:windows:*:*
cpe:2.3:a:acronis:true_image:2021:update_5:*:*:*:windows:*:*
cpe:2.3:a:acronis:agent:*:*:*:*:*:*:*:*
cpe:2.3:a:acronis:cyber_protect:15:-:*:*:*:*:*:*
cpe:2.3:a:acronis:cyber_protect:15:update1:*:*:*:*:*:*
cpe:2.3:a:acronis:cyber_protect:15:update2:*:*:*:*:*:*
cpe:2.3:a:acronis:cyber_protect_home_office:-:*:*:*:*:*:*:*

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