CVE-2023-34433Network attack vector

Password recovery via weak password hashing

Published Jul 6, 2023 · Updated Nov 14, 2024

Weak password hashing in PiiGAB M-Bus SoftwarePack 900S allows remote attackers to recover passwords via unspecified network vectors. The published advisory does not identify the hash algorithm, password-storage locus, or network operation that exposes the weak hashes. Exploitation requires no authentication or user interaction, and the reported consequence is password disclosure without integrity or availability impact.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password hashing in PiiGAB M-Bus SoftwarePack 900S allows remote attackers to recover passwords via unspecified network vectors. The published advisory does not identify the hash algorithm, password-storage locus, or network operation that exposes the weak hashes. Exploitation requires no authentication or user interaction, and the reported consequence is password disclosure without integrity or availability impact.

The record

CVE
CVE-2023-34433
Published
Jul 6, 2023
Updated
Nov 14, 2024
Vendor
PiiGAB
Product
M-Bus SoftwarePack
Classifications
CWE-916, T1110.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=900S

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PiiGAB · M-Bus SoftwarePackversion=900S
PiiGAB · PiiGAB M-Bus 900Sversion=900s

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-916Use of Password Hash With Insufficient Computational Effort
T1110.002Password Cracking

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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