CVE-2025-63225: The Eurolab ELTS100_UBX device (firmware version ELTS100v1.UBX) is vulnerable to Broken Access Control due to

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CRITICAL 9.8REMOTEMITIGATE

CVE-2025-63225 is a critical-severity flaw (CVSS 9.8) affecting elts 100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Eurolab ELTS100_UBX device (firmware version ELTS100v1.UBX) is vulnerable to Broken Access Control due to missing authentication on critical administrative endpoints. Attackers can directly access and modify sensitive system and network configurations, upload firmware, and execute unauthorized actions without any form of authentication. This vulnerability allows remote attackers to fully compromise the device, control its functionality, and d

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-11-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: eurolab-srl

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

Am I affected?

Timeline

2025-11-18 19:15 UTCPublished CVE record published
2026-06-17 09:52 UTCUpdated Record last modified

eurolab-srl elts 100 firmware MITIGATE

Affected: elts100v1.ubx

Fixed in: no fixed release known

Safe to downgrade to: a release before elts100v1.ubx

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora ELN · openjpeg · FIXED · 2.5.4-5.eln159 · FEDORA-2026-1a5f60f401 · source

sudo dnf upgrade --advisory=FEDORA-2026-1a5f60f401

Fedora 46 · trustedqsl · FIXED · 2.8.7-1.fc46 · FEDORA-2026-6b1bc90ebc · source

sudo dnf upgrade --advisory=FEDORA-2026-6b1bc90ebc

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-63225_Eurolab_ELTS100_

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-2025-63225?

elts 100 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-63225 being exploited?

CVE-2025-63225 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-2025-63225 affect?

CVE-2025-63225 affects elts 100 firmware. Severity is critical (CVSS 9.8). The Eurolab ELTS100_UBX device (firmware version ELTS100v1.UBX) is vulnerable to Broken Access Control due to missing authentication on critical administrative endpoints. Attackers can directly access and modify sensitive system and network

How urgent is CVE-2025-63225?

Priority 60/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

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