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Vulnerabilities

Vulnerability · CVE-2026-9397

A weakness has been identified in Besen BS20 EV Charging Station up to 20260426.

Published May 24, 2026 · catalog updated Jul 23, 2026 · A weakness has been

Check if you run it

No confirmed exploitation is on record for CVE-2026-9397. EPSS is 0.77%. Act only if a listed version of A weakness has been is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A weakness has been).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.77%
Remediation
Advisory link
Affected products
See sources for product scope

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."

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-9397

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-9397. EPSS is 0.77%. Act only if a listed version of A weakness has been is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-266; CWE-285: Improper Authorization. EPSS 0.77%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 24, 2026 · NIST NVD

    Detected

    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 disclo

  2. Jul 23, 2026 · NIST NVD

    Updated

    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 disclo

Sources

  • CVE.orgVulnerability recordCVE-2026-9397

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-9397

    30-day exploitation probability 0.8%

    first.org
  • NIST NVDVulnerability recordCVE-2026-9397

    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 remote

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.