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Vulnerabilities

Vulnerability · CVE-2025-41731

A vulnerability was identified in the password generation algorithm when accessing the debug-interface.

Published Nov 10, 2025 · catalog updated Nov 10, 2025 · Jumo variTRON500

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-41731. EPSS is 0.14%. Act only if a listed version of Jumo variTRON500 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.14%
Remediation
Version ranges on file
Affected products
vendor Jumo variTRON500 0.0.0.0 <9.0.2.5

A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Jumo variTRON500 0.0.0.0 <9.0.2.50.0.0.0 <9.0.2.5

How to fix CVE-2025-41731

  • Upgrade

    CVE-2025-41731 lists a fix boundary at 9.0.2.5. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 0.0.0.0 <9.0.2.5

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-41731. EPSS is 0.14%. Act only if a listed version of Jumo variTRON500 is installed.

Which versions are affected?

Compare what you have installed with Jumo variTRON500 0.0.0.0 <9.0.2.5 0.0.0.0 <9.0.2.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.14%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 10, 2025 · EUVD

    Detected

    A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled.

  2. Nov 10, 2025 · EUVD

    Updated

    A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to the device if the debug interface is still enabled.

Sources

  • CVE.orgVulnerability recordCVE-2025-41731

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-44036

    A vulnerability was identified in the password generation algorithm when accessing the debug-interface. An unauthenticated local attacker with knowledge of the password generation timeframe might be able to brute force the password in a timely manner and thus gain root access to

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 25, 2026
  • EUVDOct 25, 2026