Is CVE-2026-9397 actively exploited?

No active exploitation of CVE-2026-9397 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-9397 be exploited remotely?

Yes. CVE-2026-9397 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-9397?

CVE-2026-9397 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2026-9397

CWE-266Published: May 24, 2026· Updated: May 26, 2026

8.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.3th

Official Description

A weakness has been identified in Besen BS20 EV Charging Station up to 20260426. Affected by this issue is some unknown functionality of the component OTA Update Installation Handler. This manipulation causes improper authorization. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known 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."

NVD Source

Technical Analysis

CVE-2026-9397 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.