How severe is CVE-2019-18254?

CVE-2019-18254 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-18254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18254?

CVE-2019-18254 primarily affects Biotronik Cardiomessenger Ii-s Gsm Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-18254?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-18254 published?

CVE-2019-18254 was published on 2020-06-29 and last updated on 2026-06-17.

CVE-2019-18254

CVE-2019-18254 is a medium-severity vulnerability in Biotronik Cardiomessenger Ii-s Gsm Firmware with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
CVSS v2: 2.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Biotronik Cardiomessenger Ii-s Gsm Firmware
Published: 2020-06-29
Last modified: 2026-06-17

Description

BIOTRONIK CardioMessenger II, The affected products do not encrypt sensitive information while at rest. An attacker with physical access to the CardioMessenger can disclose medical measurement data and the serial number from the implanted cardiac device the CardioMessenger is paired with.

Frequently asked questions

What is CVE-2019-18254?: BIOTRONIK CardioMessenger II, The affected products do not encrypt sensitive information while at rest. An attacker with physical access to the CardioMessenger can disclose medical measurement data and the serial number from the implanted cardiac device the CardioMessenger is paired with.
How severe is CVE-2019-18254?: CVE-2019-18254 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-18254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18254?: CVE-2019-18254 primarily affects Biotronik Cardiomessenger Ii-s Gsm Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-18254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18254 published?: CVE-2019-18254 was published on 2020-06-29 and last updated on 2026-06-17.

References

https://www.us-cert.gov/ics/advisories/icsma-20-170-05

Affected products (2)

cpe:2.3:o:biotronik:cardiomessenger_ii-s_gsm_firmware:2.20:*:*:*:*:*:*:*
cpe:2.3:o:biotronik:cardiomessenger_ii-s_t-line_firmware:2.20:*:*:*:*:*:*:*

More vulnerabilities in Biotronik Cardiomessenger Ii-s Gsm Firmware

CVE-2019-18256 — Medium (CVSS 4.6): BIOTRONIK CardioMessenger II, The affected products use individual per-device credentials that are stored in a…
CVE-2019-18252 — Medium (CVSS 4.3): BIOTRONIK CardioMessenger II, The affected products allow credential reuse for multiple authentication purposes. An…
CVE-2019-18248 — Medium (CVSS 4.3): BIOTRONIK CardioMessenger II, The affected products transmit credentials in clear-text prior to switching to an…
CVE-2019-18246 — Medium (CVSS 4.3): BIOTRONIK CardioMessenger II, The affected products do not properly enforce mutual authentication with the BIOTRONIK…

All CVEs affecting Biotronik Cardiomessenger Ii-s Gsm Firmware →

Other CWE-312 (Cleartext Storage of Sensitive Information) vulnerabilities

CVE-2022-43757 — Critical (CVSS 9.9): A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows users on managed clusters to gain…
CVE-2021-36782 — Critical (CVSS 9.9): A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster…
CVE-2020-9045 — Critical (CVSS 9.9): During installation or upgrade to Software House C•CURE 9000 v2.70 and American Dynamics victor Video Management…
CVE-2026-31848 — Critical (CVSS 9.8): Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 uses the ecos_pw cookie for authentication, which…
CVE-2025-65826 — Critical (CVSS 9.8): The mobile application was found to contain stored credentials for the network it was developed on. If an attacker…
CVE-2025-34206 — Critical (CVSS 9.8): Vasion Print (formerly PrinterLogic) Virtual Appliance Host and Application (VA and SaaS deployments) mount host…

Browse all CWE-312 (Cleartext Storage of Sensitive Information) vulnerabilities →