---
id: CVE-2025-59463
title: >-
  An attacker may cause chunk-size mismatches that block file transfers and
  prevent subsequent transfers.
summary: >-
  An attacker may cause chunk-size mismatches that block file transfers and
  prevent subsequent transfers.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-833
vendor: sick
product: tloc100-100_firmware
affected:
  - tloc100-100_firmware
published: '2025-10-27'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-59463'
references:
  - url: 'https://sick.com/psirt'
    label: psirt@sick.de
  - url: 'https://www.cisa.gov/resources-tools/resources/ics-recommended-practices'
    label: psirt@sick.de
  - url: 'https://www.first.org/cvss/calculator/3.1'
    label: psirt@sick.de
  - url: 'https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0013.json'
    label: psirt@sick.de
  - url: 'https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0013.pdf'
    label: psirt@sick.de
  - url: >-
      https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf
    label: psirt@sick.de
tags:
  - nvd
epss: 0.00409
epssPercentile: 0.33075
ingestedAt: '2026-10-08T11:31:27.630Z'
---

## Overview

An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.

## Affected

- `tloc100-100_firmware`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.