CVE-2025-53395 | BDVDB-2026-288406 Detail

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.

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: 8.8.

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).