What’s Vulnerable › Vulnerabilities

CVE-2023-33868: PiiGAB M-Bus Improper Restriction of Excessive Authentication Attempts

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% 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-307

Description

The number of login attempts is not limited. This could allow an attacker to perform a brute force on HTTP basic authentication.

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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