Is CVE-2025-53963 actively exploited?

No active exploitation of CVE-2025-53963 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-53963 be exploited remotely?

Yes. CVE-2025-53963 is exploitable remotely over the network (CVSS attack vector: Network).

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

CVE-2025-53963 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-53963

CWE-521Published: December 4, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

NVD Source

Risk Analysis

Thermo Fisher Ion Torrent OneTouch 2 devices use a weak default password for the root account, which is not enforced to be changed. This critical flaw allows attackers with network access to gain root-level code execution.

No public exploit is known, but the vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Change the default root password immediately, noting that the product is no longer supported.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-53963 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.