CVE-2025-53963: An issue was discovered on Thermo Fisher Ion Torrent OneTouch 2 INS1005527 devices

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CRITICAL 9.8REMOTEMITIGATE

CVE-2025-53963 is a critical-severity flaw (CVSS 9.8) affecting ion torrent onetouch 2 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-521
Published	2025-12-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: thermofisher

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-04 15:15 UTCPublished CVE record published
2026-06-17 09:39 UTCUpdated Record last modified

thermofisher ion torrent onetouch 2 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-53963?

ion torrent onetouch 2 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-53963 being exploited?

CVE-2025-53963 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-53963 affect?

CVE-2025-53963 affects ion torrent onetouch 2 firmware. Severity is critical (CVSS 9.8). 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 r

How urgent is CVE-2025-53963?

Priority 49/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-54304 CRITICAL 9.8 MITIGATE An issue was discovered on Thermo Fisher Ion Torrent OneTouch 2 INS1005527 devices

References

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