CVE-2025-59463 Denial-of-service (DoS) via chunk size mismatch
Attackers can cause chunk-size mismatches to block file transfers on SICK TLOC100-100 devices, disrupting operations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-59463?
CVE-2025-59463 is a medium-severity denial of service vulnerability in SICK AG TLOC100-100 all Firmware versions, published on 27 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.
Weakness: CWE-833
Which versions are affected by CVE-2025-59463?
It affects 1 product.
Products include Sick Tloc100-100 Firmware.
How do I fix CVE-2025-59463?
No fix has been published for CVE-2025-59463 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-59463 being exploited?
There is no known exploitation of CVE-2025-59463 in the wild and no public exploit code.
Other vulnerabilities in SICK AG TLOC100-100 all Firmware versions
Sources
Also known as GHSA-q286-q7fg-g7gc.