What is CVE-2021-44198?

CVE-2021-44198 is a high-severity vulnerability in Acronis Cyber Protect 15, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2021-11-29.

How severe is CVE-2021-44198?

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

Vulnerability in Acronis Cyber Protect 15

CVE-2021-44198

DLL hijacking could lead to local privilege escalation. The following products are affected: Acronis Cyber Protect 15 (Windows) before build 28035

Published 2021-11-29 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.003 (15.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.3% 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: 0.003 · change: +0.000

Affected products

Acronis Cyber Protect 15 — versions unspecified
Acronis Cyber Protect — versions 15
Microsoft Windows

Weakness classification (CWE)

CWE-427 — Uncontrolled Search Path Element

References

security-advisory.acronis.com/advisories/SEC-2128 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-44198?: CVE-2021-44198 is a high-severity vulnerability in Acronis Cyber Protect 15, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2021-11-29.
How severe is CVE-2021-44198?: High severity. CVSS v3 base score is 7.8 out of 10.