How severe is CVE-2021-37164?

CVE-2021-37164 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-2021-37164 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37164?

CVE-2021-37164 affects Swisslog-healthcare Hmi-3 Control Panel Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37164?

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-2021-37164 published?

CVE-2021-37164 was published on 2021-08-02 and last updated on 2026-06-17.

CVE-2021-37164

CVE-2021-37164 is a critical-severity vulnerability in Swisslog-healthcare Hmi-3 Control Panel 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Swisslog-healthcare Hmi-3 Control Panel Firmware
Published: 2021-08-02
Last modified: 2026-06-17

Description

A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by released versions of software before Nexus Software 7.2.5.7. In the tcpTxThread function, the received data is copied to a stack buffer. An off-by-3 condition can occur, resulting in a stack-based buffer overflow.

Frequently asked questions

What is CVE-2021-37164?: A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by released versions of software before Nexus Software 7.2.5.7. In the tcpTxThread function, the received data is copied to a stack buffer. An off-by-3 condition can occur, resulting in a stack-based buffer overflow.
How severe is CVE-2021-37164?: CVE-2021-37164 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-2021-37164 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37164?: CVE-2021-37164 affects Swisslog-healthcare Hmi-3 Control Panel Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37164?: 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-2021-37164 published?: CVE-2021-37164 was published on 2021-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:swisslog-healthcare:hmi-3_control_panel_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Swisslog-healthcare Hmi-3 Control Panel Firmware

CVE-2021-37167 — Critical (CVSS 9.8): An insecure permissions issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by…
CVE-2021-37163 — Critical (CVSS 9.8): An insecure permissions issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus operated by released…
CVE-2021-37162 — Critical (CVSS 9.8): A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by released…
CVE-2021-37161 — Critical (CVSS 9.8): A buffer overflow issue was discovered in the HMI3 Control Panel contained within the Swisslog Healthcare Nexus Panel,…
CVE-2021-37160 — Critical (CVSS 9.8): A firmware validation issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by…
CVE-2021-37165 — Critical (CVSS 9.8): A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by released…

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