CVE-2019-6540 [Medium] | Information Disclosure in Mycarelink Monitor 24950 …

The Conexus telemetry protocol utilized within Medtronic MyCareLink Monitor versions 24950 and 24952, CareLink Monitor version 2490C, CareLink 2090 Programmer, Amplia CRT-D, Claria CRT-D, Compia CRT-D, Concerto CRT-D, Concerto II CRT-D, Consulta CRT-D, Evera ICD, Maximo II CRT-D and ICD, Mirro ICD, Nayamed ND ICD, Primo ICD, Protecta ICD and CRT-D, Secura ICD, Virtuoso ICD, Virtuoso II ICD, Visia AF ICD, and Viva CRT-D does not implement encryption. An attacker with adjacent short-range access to a target product can listen to communications, including the transmission of sensitive data.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.02%	0.19%	+0.18%
2	2025-03-17	0.05%	0.02%	-0.04%
3	2023-03-07	—	0.05%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.02%

0.19%

+0.18%

2025-03-17

0.05%

0.02%

-0.04%

2023-03-07

—

0.05%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.5	3.1	MEDIUM	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N` Click to expand Attack vector (AV:A) Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	2.8	3.6	[email protected]
6.5	3.1	MEDIUM	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N` Click to expand Attack vector (AV:A) Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	2.8	3.6	[email protected]
3.3	2.0	LOW	`AV:A/AC:L/Au:N/C:P/I:N/A:N` Click to expand Access vector (AV:A) Requires access to an adjacent network segment. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:N) No availability impact.	6.5	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.5

3.1

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand

Attack vector (AV:A): Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

2.8

3.6

[email protected]

6.5

3.1

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand

Attack vector (AV:A): Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

2.8

3.6

[email protected]

3.3

2.0

LOW

AV:A/AC:L/Au:N/C:P/I:N/A:N Click to expand

Access vector (AV:A): Requires access to an adjacent network segment.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:N): No availability impact.

6.5

2.9

[email protected]

Affected software / configurations for CVE-2019-6540

Vendor	Product	Version	Raw CPE
medtronic	mycarelink_monitor_24950_firmware	—	cpe:2.3:o:medtronic:mycarelink_monitor_24950_firmware:-:::::::*
medtronic	mycarelink_monitor_24952_firmware	—	cpe:2.3:o:medtronic:mycarelink_monitor_24952_firmware:-:::::::*
medtronic	carelink_monitor_2490c_firmware	—	cpe:2.3:o:medtronic:carelink_monitor_2490c_firmware:-:::::::*
medtronic	carelink_2090_firmware	—	cpe:2.3:o:medtronic:carelink_2090_firmware:-:::::::*
medtronic	amplia_crt-d_firmware	—	cpe:2.3:o:medtronic:amplia_crt-d_firmware:-:::::::*
medtronic	claria_crt-d_firmware	—	cpe:2.3:o:medtronic:claria_crt-d_firmware:-:::::::*
medtronic	compia_crt-d_firmware	—	cpe:2.3:o:medtronic:compia_crt-d_firmware:-:::::::*
medtronic	concerto_crt-d_firmware	—	cpe:2.3:o:medtronic:concerto_crt-d_firmware:-:::::::*
medtronic	concerto_ii_crt-d_firmware	—	cpe:2.3:o:medtronic:concerto_ii_crt-d_firmware:-:::::::*
medtronic	consulta_crt-d_firmware	—	cpe:2.3:o:medtronic:consulta_crt-d_firmware:-:::::::*
medtronic	evera_icd_firmware	—	cpe:2.3:o:medtronic:evera_icd_firmware:-:::::::*
medtronic	maximo_ii_crt-d_firmware	—	cpe:2.3:o:medtronic:maximo_ii_crt-d_firmware:-:::::::*
medtronic	maximo_ii_icd_firmware	—	cpe:2.3:o:medtronic:maximo_ii_icd_firmware:-:::::::*
medtronic	mirro_icd_firmware	—	cpe:2.3:o:medtronic:mirro_icd_firmware:-:::::::*
medtronic	nayamed_nd_icd_firmware	—	cpe:2.3:o:medtronic:nayamed_nd_icd_firmware:-:::::::*
medtronic	primo_icd_firmware	—	cpe:2.3:o:medtronic:primo_icd_firmware:-:::::::*
medtronic	protecta_icd_firmware	—	cpe:2.3:o:medtronic:protecta_icd_firmware:-:::::::*
medtronic	protecta_crt-d_firmware	—	cpe:2.3:o:medtronic:protecta_crt-d_firmware:-:::::::*
medtronic	secura_icd_firmware	—	cpe:2.3:o:medtronic:secura_icd_firmware:-:::::::*
medtronic	virtuoso_icd_firmware	—	cpe:2.3:o:medtronic:virtuoso_icd_firmware:-:::::::*
medtronic	virtuoso_ii_icd_firmware	—	cpe:2.3:o:medtronic:virtuoso_ii_icd_firmware:-:::::::*
medtronic	visia_af_icd_firmware	—	cpe:2.3:o:medtronic:visia_af_icd_firmware:-:::::::*
medtronic	viva_crt-d_firmware	—	cpe:2.3:o:medtronic:viva_crt-d_firmware:-:::::::*

References for CVE-2019-6540

URL	Tags
http://www.securityfocus.com/bid/107544	Broken Link
https://ics-cert.us-cert.gov/advisories/ICSMA-19-080-01	Third Party Advisory US Government Resource

URL

CVE-2019-6540 | Medtronic Conexus Radio Frequency Telemetry Protocol Cleartext Transmission of Sensitive Information

Exploit prediction scoring system (EPSS) score for CVE-2019-6540

Common vulnerability scoring system (CVSS) metrics for CVE-2019-6540

Weakness enumeration for CVE-2019-6540

Affected software / configurations for CVE-2019-6540

References for CVE-2019-6540