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Fencer Vulns
medium 4.6

CVE-2019-18256 json

BIOTRONIK CardioMessenger II, The affected products use individual per-device credentials that are stored in a recoverable format.

published 2020-06-29 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8054

cvss
4.6
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

BIOTRONIK CardioMessenger II, The affected products use individual per-device credentials that are stored in a recoverable format. An attacker with physical access to the CardioMessenger can use these credentials for network authentication and decryption of local data in transit.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSMA-20-170-05 updated cvss 4.6

BIOTRONIK CardioMessenger II

  • BIOTRONIK CardioMessenger II-S GSM T4APP 2.2 BIOTRONIK CardioMessenger II-S T-Line T4APP 2.2
    affected: vendor fix

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a BIOTRONIK CardioMessenger II-S T-Line, CardioMessenger II-S GSM

Classification

Weakness
  • CWE-257 Storing Passwords in a Recoverable Format
  • CWE-522 Insufficiently Protected Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.