How severe is CVE-2020-12040?

CVE-2020-12040 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12040 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12040?

CVE-2020-12040 primarily affects Baxter Sigma Spectrum Infusion System 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-2020-12040?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-12040 published?

CVE-2020-12040 was published on 2020-06-29 and last updated on 2026-06-17.

CVE-2020-12040

CVE-2020-12040 is a critical-severity vulnerability in Baxter Sigma Spectrum Infusion System Firmware with a CVSS 3.x base score of 9.8. 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-319.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Baxter Sigma Spectrum Infusion System Firmware
Published: 2020-06-29
Last modified: 2026-06-17

Description

Sigma Spectrum Infusion System v's6.x (model 35700BAX) and Baxter Spectrum Infusion System Version(s) 8.x (model 35700BAX2) at the application layer uses an unauthenticated clear-text communication channel to send and receive system status and operational data. This could allow an attacker that has circumvented network security measures to view sensitive non-private data or to perform a man-in-the-middle attack.

Frequently asked questions

What is CVE-2020-12040?: Sigma Spectrum Infusion System v's6.x (model 35700BAX) and Baxter Spectrum Infusion System Version(s) 8.x (model 35700BAX2) at the application layer uses an unauthenticated clear-text communication channel to send and receive system status and operational data. This could allow an attacker that has circumvented network security measures to view sensitive non-private data or to perform a man-in-the-middle attack.
How severe is CVE-2020-12040?: CVE-2020-12040 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12040 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12040?: CVE-2020-12040 primarily affects Baxter Sigma Spectrum Infusion System 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-2020-12040?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-12040 published?: CVE-2020-12040 was published on 2020-06-29 and last updated on 2026-06-17.

References

https://www.us-cert.gov/ics/advisories/icsma-20-170-04

Affected products (2)

cpe:2.3:o:baxter:sigma_spectrum_infusion_system_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:baxter:sigma_spectrum_infusion_system_firmware:8.0:*:*:*:*:*:*:*

More vulnerabilities in Baxter Sigma Spectrum Infusion System Firmware

CVE-2020-12047 — Critical (CVSS 9.8): The Baxter Spectrum WBM (v17, v20D29, v20D30, v20D31, and v22D24), when used with a Baxter Spectrum v8.x (model…
CVE-2020-12045 — Critical (CVSS 9.8): The Baxter Spectrum WBM (v17, v20D29, v20D30, v20D31, and v22D24) when used in conjunction with a Baxter Spectrum v8.x…
CVE-2020-12043 — Critical (CVSS 9.8): The Baxter Spectrum WBM (v17, v20D29, v20D30, v20D31, and v22D24) when configured for wireless networking the FTP…
CVE-2014-5433 — Critical (CVSS 9.8): An unauthenticated remote attacker may be able to execute commands to view wireless account credentials that are stored…
CVE-2014-5432 — Critical (CVSS 9.8): Baxter SIGMA Spectrum Infusion System version 6.05 (model 35700BAX) with wireless battery module (WBM) version 16 is…
CVE-2014-5434 — Critical (CVSS 9.8): Baxter SIGMA Spectrum Infusion System version 6.05 (model 35700BAX) with wireless battery module (WBM) version 16 has a…

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