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CVE-2025-3321VulnerabilityPublished

CVE-2025-3321: B. Braun Melsungen OnlineSuite · Use of Hard-coded Credentials

Affects B. Braun Melsungen OnlineSuiteSource CVE Database V5

0

Not known to be exploited · CVSS 9.4 Critical.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
9.4Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
B. Braun Melsungen AG OnlineSuiteAffected
  • =3.0
Fixed in–

AI-suggested

Given the absence of an official patch, European organizations should implement strict physical and logical access controls to the servers running OnlineSuite 3.0 to prevent unauthorized local access. This includes securing server rooms, enforcing multi-factor authentication for server access, and monitoring local login attempts closely. Organizations should conduct thorough audits to identify any use of the undocumented administrative account and restrict its use where possible. Network segmentation can limit exposure by isolating the OnlineSuite servers from less trusted network segments. Additionally, organizations should engage with B. Braun to obtain guidance or interim mitigation measures and monitor for any forthcoming patches or updates. Employing host-based intrusion detection systems (HIDS) to detect unusual local activity and maintaining comprehensive logging will aid in early detection of exploitation attempts. Finally, organizations should prepare incident response plans specific to this vulnerability, including rapid isolation and forensic analysis capabilities.

Description

A predefined administrative account is not documented and cannot be deactivated. This account cannot be misused from the network, only by local users on the server.

References

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