Is CVE-2026-28721 in the CISA KEV catalog?

No. CVE-2026-28721 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-28721?

CVE-2026-28721 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2026-28721?

CVE-2026-28721 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-28721?

Upgrade cyber protect to 17.0.41186 or later.

CVE & CISA-KEV Catalog

CVE-2026-28721

HIGH

7.3

CVSS v3

NVD

Description

Local privilege escalation due to improper soft link handling. The following products are affected: Acronis Cyber Protect 17 (Windows) before build 41186.

CWE-610

How to fix

Remediation Available

cyber protectNVD

Affected:< 17.0.41186Fixed in:17.0.41186CVE-2026-28721derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Vendor Advisory1

security-advisory.acronis.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-11.