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01 Record

CVE-2023-33868

PiiGAB M-Bus Improper Restriction of Excessive Authentication Attempts

MediumPUBLISHEDCNA: icscert
CNA base score5.9 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

02 Description

PiiGAB M-Bus Improper Restriction of Excessive Authentication Attempts

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.65% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 50.9% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-07-06 22:53Z3 YR AGO
Last updated
2024-10-24 13:31Z2 YR AGO
Reserved
2023-06-27
Assigning CNA
icscert
Record state
PUBLISHED
Severity
Medium (CVSS 5.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-307Improper Restriction of Excessive Authentication AttemptsBase
Data version
5.1
Document digest
36e871bdba1ec70a37eff5734be661bd7e50e884b711907682532cef437ef815

05 Affected products

VendorProductVersionsPlatforms
PiiGABM-Bus SoftwarePack900S—

06 References

07 Remediation

PiiGAB created updated software to address these issues and encourages users to install the new update on their own gateway. The new software packages can be downloaded directly from the web UI in the gateway and older gateways can download it from Piigab.se http://www.piigab.se/ or Piigab.com https://www.piigab.com/ .