How severe is CVE-2023-4419?

CVE-2023-4419 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-4419 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4419?

CVE-2023-4419 primarily affects Sick Lms531 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-4419?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-4419 published?

CVE-2023-4419 was published on 2023-08-24 and last updated on 2026-06-17.

CVE-2023-4419

CVE-2023-4419 is a critical-severity vulnerability in Sick Lms531 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Sick Lms531 Firmware
Published: 2023-08-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-4419?: CVE-2023-4419 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-4419 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4419?: CVE-2023-4419 primarily affects Sick Lms531 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-4419?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-4419 published?: CVE-2023-4419 was published on 2023-08-24 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:sick:lms531_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:lms511_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:lms500_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Sick Lms531 Firmware

CVE-2023-4420 — Critical (CVSS 9.8): A remote unprivileged attacker can intercept the communication via e.g. Man-In-The-Middle, due to the absence of…
CVE-2023-4418 — High (CVSS 7.5): A remote unprivileged attacker can sent multiple packages to the LMS5xx to disrupt its availability through a TCP…
CVE-2023-31412 — High (CVSS 7.5): The LMS5xx uses weak hash generation methods, resulting in the creation of insecure hashs. If an attacker manages to…
CVE-2020-2075 — High (CVSS 7.5): Platform mechanism AutoIP allows remote attackers to reboot the device via a crafted packet in SICK AG solutions…

All CVEs affecting Sick Lms531 Firmware →

Other CWE-798 (Use of Hard-coded Credentials) vulnerabilities

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CVE-2026-45631 — Critical (CVSS 10.0): Dokploy is a free, self-hostable Platform as a Service (PaaS). From 0.27.0 to before 0.29.3, a hardcoded…
CVE-2026-22769 — Critical (CVSS 10.0): Dell RecoverPoint for Virtual Machines, versions prior to 6.0.3.1 HF1, contain a hardcoded credential vulnerability.…
CVE-2025-42890 — Critical (CVSS 10.0): SQL Anywhere Monitor (Non-GUI) baked credentials into the code,exposing the resources or functionality to unintended…
CVE-2025-7503 — Critical (CVSS 10.0): An OEM IP camera manufactured by Shenzhen Liandian Communication Technology LTD exposes a Telnet service (port 23) with…
CVE-2025-20309 — Critical (CVSS 10.0): A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…

Browse all CWE-798 (Use of Hard-coded Credentials) vulnerabilities →