Auth bypass in Arteche Satech Bcu
CVE-2025-2859
An attacker with network access, could capture traffic and obtain user cookies, allowing the attacker to steal the active user session and make changes to the device via web, depending on the privileges obtained by the user.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Arteche Satech Bcu — versions 2.1.3
- Arteche Satech Bcu
- Arteche Satech Bcu Firmware — versions 2.1.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-arteche… (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-2859?
- CVE-2025-2859 is a critical-severity vulnerability in Arteche Satech Bcu, classified under Improper Authentication. CVSS score: 9.8/10. Published 2025-03-28.
- How severe is CVE-2025-2859?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-2859 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.