CVE-2023-31412Network attack vector

Password disclosure via weak hash generation

Published Aug 24, 2023 · Updated Jun 1, 2026

Weak hash generation in SICK AG LMS5xx all firmware versions allows remote attackers to recover a password from a retrieved hash. SICK has not disclosed the hash algorithm, storage locus, or method by which an attacker retrieves the hash. Exploitation requires access to the hash; successful recovery exposes the protected password without affecting integrity or availability.

CVSS severity7.5
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak hash generation in SICK AG LMS5xx all firmware versions allows remote attackers to recover a password from a retrieved hash. SICK has not disclosed the hash algorithm, storage locus, or method by which an attacker retrieves the hash. Exploitation requires access to the hash; successful recovery exposes the protected password without affecting integrity or availability.

The record

CVE
CVE-2023-31412
Published
Aug 24, 2023
Updated
Jun 1, 2026
Vendor
SICK AG
Product
LMS5xx
Classifications
CWE-916, CWE-328, T1110.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 2026Record 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=0 <*
  2. Affected versionversion=all firmware versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SICK AG · LMS5xxversion=0 <*; version=all firmware versions

Published CVSS scores

7.5SICK AGCVSS: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
CWE-328Use of Weak Hash
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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