Medium 4.3Published Oct 27, 2025

CVE-2025-59463Denial-of-service (DoS) via chunk size mismatch

Updated under an hour ago (Oct 26, 2026, 3:40 PM ET)

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It affects SICK AG TLOC100-100 all Firmware versions and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for SICK AG TLOC100-100 all Firmware versions

Exploited in the last 30 days

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

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-833
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: SICK AG
NVD analysis: Analyzed
Record last updated: Oct 27, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SICK AG TLOC100-100 all Firmware versions sick:tloc100_100_all_firmware_versions (from the name)	all versions	CNA record
sick tloc100-100_firmware sick:tloc100-100_firmware	all versions	NVD

References

References

https://sick.com/psirt	x-sick-psirt-security-advisories, vendor-advisory
https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf	x-sick-operating-guidelines, product
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices	x-ics-cert-recommended-practices-on-industrial-security, us-government-resource
https://www.first.org/cvss/calculator/3.1	x-cvss-v3.1-calculator, not-applicable
https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0013.json	x-the-canonical-url., vendor-advisory
https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0013.pdf	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.