CVE-2023-4418

HIGH
7.5
CVSS Score
Published: August 24, 2023 at 06:05 PM UTC
Updated: June 17, 2026 at 06:37 AM UTC
7 products affected across 1 vendorLMS531 FirmwareLMS500 FirmwareLMS511 Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

A remote unprivileged attacker can sent multiple packages to the LMS5xx to disrupt its availability through a TCP SYN-based denial-of-service (DDoS) attack. By exploiting this vulnerability, an attacker can flood the targeted LMS5xx with a high volume of TCP SYN requests, overwhelming its resources and causing it to become unresponsive or unavailable for legitimate users.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
sick-lms500 (same device)
All versions
sick-lms511 (same device)
All versions
sick-lms531 (same device)
80%
All versions
80%
All versions
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHSICK AG
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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