CVE-2025-53394

High

Description

Paramount Macrium Reflect through 2025-06-26 allows attackers to execute arbitrary code with administrator privileges via a crafted .mrimgx or .mrbax backup file and a renamed executable placed in the same directory. When a user with administrative privileges opens the crafted backup file and proceeds to mount it, Reflect launches the renamed executable (e.g., explorer.exe), which is under attacker control. This occurs because of insufficient validation of companion files referenced during backup mounting.

SeverityHigh
CVSS7.7
Exploit probability—
ProductMacrium Reflect
PublishedAug 4, 2025
First seenAug 4, 2025
Weakness typeCWE-427CWE-427

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Paramount Macrium Reflectv ≤ 2025-06-26—

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