Vulnerability in Besen Bs20 Ev Charging Station
CVE-2026-9396
A security flaw has been discovered in Besen BS20 EV Charging Station up to 20260426. Affected by this vulnerability is an unknown functionality of the component Firmware Version Check. The manipulation results in improper restriction of rendered ui layers. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitation appears to be difficult. The original disclosure mentions, that "[t]hese vulnerabilities have been reported to Besen and we have received their acknowlegement that they are reviewing this as of April 2026."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Besen Bs20 Ev Charging Station — versions 20260426
Weakness classification (CWE)
References
- vuldb.com/vuln/365377 (vdb-entry)
- vuldb.com/vuln/365377/cti (signature, permissions-required)
- vuldb.com/submit/813575 (third-party-advisory)
- github.com/carfeii/besen (related)
Frequently asked questions
- What is CVE-2026-9396?
- CVE-2026-9396 is a low-severity vulnerability in Besen Bs20 Ev Charging Station, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 3.7/10. Published 2026-05-24.
- How severe is CVE-2026-9396?
- Low severity. CVSS v3 base score is 3.7 out of 10.