PatchTheCVECVE-2021-37164: A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by re
CVE-2021-37164 is a critical-severity flaw (CVSS 9.8) affecting hmi-3 control panel firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 3.4% (top 11%) |
| CISA exploited list | No |
| Weakness | CWE-787 |
| Published | 2021-08-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-37164?
hmi-3 control panel firmware: upgrade to 7.2.5.7. Exact commands for each OS are on this page.
Is CVE-2021-37164 being exploited?
CVE-2021-37164 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-37164 affect?
CVE-2021-37164 affects hmi-3 control panel firmware. Severity is critical (CVSS 9.8). 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 buf
How urgent is CVE-2021-37164?
Priority 62/100. Critical severity; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2021-37167 CRITICAL 9.8 UPGRADE An insecure permissions issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated
- CVE-2021-37166 HIGH 7.5 UPGRADE A buffer overflow issue leading to denial of service was discovered in HMI3 Control Panel in Swisslog Healthca
- CVE-2021-37165 CRITICAL 9.8 UPGRADE A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by re
- CVE-2021-37163 CRITICAL 9.8 UPGRADE An insecure permissions issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus operated by re
- CVE-2021-37162 CRITICAL 9.8 UPGRADE A buffer overflow issue was discovered in HMI3 Control Panel in Swisslog Healthcare Nexus Panel operated by re