CVE-2025-53394 | BDVDB-2026-288405 Detail

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-427 Uncontrolled Search Path Element

References#

Exploit#

No public exploit known

History#

Version 12025-08-04Record published in the CVE List.
Version 22025-08-05Most recent update recorded in the CVE List.

Published

Published: 2025-08-04
Last modified: 2025-08-05

Vendor information

Vendor: Not stated
Product: Not stated

Score

7.7 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 6.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

No version data in the source record.

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.7 High

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

Metric breakdown
Attack Complexity	Low
Attack Vector	Local
Availability	High
Confidentiality	High
Integrity	High
Privileges Required	High
Scope	Changed
User Interaction	Required

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).