CVE-2025-63207: The R.V.R Elettronica TEX product (firmware TEXL-000400, Web GUI TLAN-000400) is vulnerable to broken access c

This week

CRITICAL 9.8REMOTEMITIGATEMITIGATEMITIGATE

CVE-2025-63207 is a critical-severity flaw (CVSS 9.8) affecting tex30lcd\/s firmware, tex50lcd\/s firmware, tex100lcd\/s firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The R.V.R Elettronica TEX product (firmware TEXL-000400, Web GUI TLAN-000400) is vulnerable to broken access control due to improper authentication checks on the /_Passwd.html endpoint. An attacker can send an unauthenticated POST request to change the Admin, Operator, and User passwords, resulting in complete system compromise.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
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	7.4% (top 6%)
CISA exploited list	No
Weakness	CWE-287
Published	2025-11-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rvr

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

Am I affected?

Timeline

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

rvr tex30lcd\/s firmware MITIGATE

Affected: texl-000400

Fixed in: no fixed release known

Safe to downgrade to: a release before texl-000400

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.

rvr tex50lcd\/s firmware MITIGATE

Affected: texl-000400

Fixed in: no fixed release known

Safe to downgrade to: a release before texl-000400

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.

rvr tex100lcd\/s firmware MITIGATE

Affected: texl-000400

Fixed in: no fixed release known

Safe to downgrade to: a release before texl-000400

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.

rvr tex150lcd\/s firmware MITIGATE

Affected: texl-000400

Fixed in: no fixed release known

Safe to downgrade to: a release before texl-000400

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.

rvr tex300lcd firmware MITIGATE

Affected: texl-000400

Fixed in: no fixed release known

Safe to downgrade to: a release before texl-000400

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.

rvr tex502lcd firmware MITIGATE

Affected: texl-000400

Fixed in: no fixed release known

Safe to downgrade to: a release before texl-000400

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-2025-63207_RVR%20Elettronic

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-2025-63207?

tex30lcd\/s firmware: mitigate or apply the listed mitigation; tex50lcd\/s firmware: mitigate or apply the listed mitigation; tex100lcd\/s firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-63207 being exploited?

CVE-2025-63207 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-2025-63207 affect?

CVE-2025-63207 affects tex30lcd\/s firmware, tex50lcd\/s firmware, tex100lcd\/s firmware. Severity is critical (CVSS 9.8). The R.V.R Elettronica TEX product (firmware TEXL-000400, Web GUI TLAN-000400) is vulnerable to broken access control due to improper authentication checks on the /_Passwd.html endpoint. An attacker can send an unauthenticated POST request t

How urgent is CVE-2025-63207?

Priority 71/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

← Back to latest CVEs