What is the CVSS score of CVE-2025-53963?

CVE-2025-53963 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Ion Torrent Onetouch 2 Firmware are affected by CVE-2025-53963?

Thermo Fisher Ion Torrent OneTouch 2 devices contain a critical vulnerability enabling unauthenticated root access via default credentials, posing a severe risk to laboratory operations and data…

How to fix or mitigate CVE-2025-53963?

Within 24 hours: Identify all Ion Torrent OneTouch 2 INS1005527 devices in your environment and document their network location and data sensitivity. Within 7 days: Implement network segmentation to restrict SSH access (port 22) to these devices from untrusted networks; require VPN or firewall rules limiting connectivity to authorized administrative personnel only. Within 30 days: Evaluate replacement or decommissioning of affected devices; if continued operation is necessary, change root password from default 'ionadmin' to a strong credential and implement network-based SSH access controls with monitoring.

Ion Torrent Onetouch 2 Firmware CVE-2025-53963

EUVD-2025-201181 CRITICAL

Weak Password Requirements (CWE-521)

2025-12-04 cve@mitre.org

RCE Ion Torrent Onetouch 2 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 16:35 euvd

EUVD-2025-201181

Analysis Generated

Mar 15, 2026 - 16:35 vuln.today

CVE Published

Dec 04, 2025 - 15:15 nvd

CRITICAL 9.8

DescriptionCVE.org

An issue was discovered on Thermo Fisher Ion Torrent OneTouch 2 INS1005527 devices. They run an SSH server accessible over the default port 22. The root account has a weak default password of ionadmin, and a password change policy for the root account is not enforced. Thus, an attacker with network connectivity can achieve root code execution. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.