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01 Record

CVE-2023-4419

The LMS5xx uses hard-coded credentials, which potentially allow low-skilled unauthorized remote attackers to reconfigure settings and /or disrupt the functionality of the device.

CriticalPUBLISHEDCNA: SICK AG
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

The LMS5xx uses hard-coded credentials, which potentially allow low-skilled unauthorized remote attackers to reconfigure settings and /or disrupt the functionality of the device.

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 ImpacttotalSuccessful exploitation gives total 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
0.94% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 60.7% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/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
2023-08-24 18:08Z3 YR AGO
Last updated
2026-06-01 12:14Z5 MO AGO
Reserved
2023-08-18
Assigning CNA
SICK AG
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-798Use of Hard-coded CredentialsBase
Data version
5.2
Document digest
046604e30ee55f1596648fb6da7913e97670eb6be31255bd3bdc7c19143e08a7

05 Affected products

VendorProductVersionsPlatforms
SICK AGLMS5xx0 to < V2.21—
sicklms5xx0 to < 2.21—

06 References

07 Remediation

SICK has released a new version V2.21 of the SICK LMS5xx firmware and recommends updating to the newest version.