What’s Vulnerable › Vulnerabilities

CVE-2023-31277: PiiGAB M-Bus Unprotected Transport of Credentials

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-06 · updated 2026-06-17
• Weakness: CWE-523

Description

PiiGAB M-Bus transmits credentials in plaintext format.

Affected products

• PiiGAB M-Bus SoftwarePack: all versions

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-23-187-01
• https://www.cisa.gov/news-events/ics-advisories/icsa-23-187-01

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