{"id":"CVE-2025-53395","aliases":["EUVD-2025-23533","GHSA-rhmx-9m9c-c72h"],"status":"published","title":"Paramount Macrium Reflect through 2025-06-26 allows local attackers to execute arbitrary code...","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.","severity":{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:H/S:C/UI:R","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00191,"percentile":0.08791,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-427"],"published":"2025-08-04T00:00:00Z","modified":"2026-06-17T09:38:08Z","references":[{"url":"https://macrium.com"},{"url":"https://www.macrium.com/blog/macrium-security-advisory-cve-2025-53394-cve-2025-53395"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53395"},{"url":"https://github.com/advisories/GHSA-rhmx-9m9c-c72h"}],"sources":{"cve":[{"id":"CVE-2025-53395","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.","status":"published","published":"2025-08-04T00:00:00Z","modified":"2025-08-05T14:29:34Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:H/S:C/UI:R","level":"high","assessor":"cna"}],"cwes":["CWE-427"],"updated_at":"2026-11-02T14:32:49.180768Z"}],"euvd":[{"id":"EUVD-2025-23533","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.","status":"published","published":"2025-08-04T00:00:00Z","modified":"2025-08-05T14:29:34Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:H/S:C/UI:R","level":"high"}],"updated_at":"2026-11-02T20:32:01.599514Z"}],"ghsa":[{"id":"GHSA-rhmx-9m9c-c72h","title":"Paramount Macrium Reflect through 2025-06-26 allows local attackers to execute arbitrary code...","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.","status":"published","published":"2025-08-04T21:30:43Z","modified":"2025-08-05T15:31:46Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-427"],"updated_at":"2026-11-02T15:03:11.278533Z"}],"nvd":[{"id":"CVE-2025-53395","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.","status":"published","published":"2025-08-04T19:15:32.103Z","modified":"2026-06-17T09:38:08.137Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-427"],"updated_at":"2026-11-02T14:11:22.319351Z"}]}}