CVE-2025-53395

HighCVSS 7.7/10Last modified Jun 17, 2026

Description

Paramount Macrium Reflect through 2025-06-26 allows local attackers to execute arbitrary code with administrator privileges via a crafted .mrimgx backup file and a malicious VSSSvr.dll located in the same directory. When a user with administrative privileges mounts a backup by opening the .mrimgx file, Reflect loads the attacker's VSSSvr.dll after the mount completes. This occurs because of untrusted DLL search path behavior in ReflectMonitor.exe.

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-427

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

Timeline

Published: Aug 4, 2025
Last modified: Jun 17, 2026
NVD status: Deferred

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