CVE-2025-59463
Denial-of-service (DoS) via chunk size mismatch
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Denial-of-service (DoS) via chunk size mismatch
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.
- Record
CVE-2025-59463- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-833
- Updated
- 2026-11-02
EUVDEUVD-2025-36147
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.
- Record
EUVD-2025-36147- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q286-q7fg-g7gc
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent...
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.
- Record
GHSA-q286-q7fg-g7gc- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-833
- Updated
- 2026-11-02
NVD
An attacker may cause chunk-size mismatches that block file transfers and prevent subsequent transfers.
- Record
CVE-2025-59463- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-833
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-59463 is a medium vulnerability (CVSS 4.3) in Sick Tloc100-100 Firmware, published October 27, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.
References
sick.com/psirt
sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf
cisa.gov/resources-tools/resources/ics-recommended-practices
first.org/cvss/calculator/3.1
nvd.nist.gov/vuln/detail/CVE-2025-59463
github.com/advisories/GHSA-q286-q7fg-g7gc