Vulnerability · Published Oct 27, 2025 · Assigned by SICK AG
CVE-2025-59463Denial-of-service (DoS) via chunk size mismatch
Medium 4.3
In plain English
A medium-severity security flaw in TLOC100-100 all Firmware versions from SICK AG. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 64.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SICK AG | TLOC100-100 all Firmware versions | all versions |
Weakness: CWE-833 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://sick.com/psirt x_SICK PSIRT Security Advisories
- https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf x_SICK Operating Guidelines
- https://www.cisa.gov/resources-tools/resources/ics-recommended-practices x_ICS-CERT recommended practices on Industrial Security
- https://www.first.org/cvss/calculator/3.1 x_CVSS v3.1 Calculator
- https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0013.json x_The canonical URL.
- https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0013.pdf vendor-advisory