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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 rec
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d9bbd9f63032d1db61ee090c81f72b81673df6656581be0d38421f450b67cd6c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":3.7,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":2.6,"vectorString":"AV:N/AC:H/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":3.7,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:*"],"modules":["Firmware Version Check"],"product":"BS20 EV Charging Station","vendor":"Besen","versions":[{"status":"affected","version":"20260426"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":3.7,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":2.6,"vectorString":"AV:N/AC:H/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":3.7,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1021","description":"Improper Restriction of Rendered UI Layers","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["related"],"url":"https://github.com/carfeii/besen#finding-3-firmware-version-check-manipulation-and-ui-spoofing"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/references/3
{"name":"Submit #813575 | Besen EV Charging Station BS20 EV Charger Improper Verification of Cryptographic Signature","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/813575"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/references/2
{"name":"VDB-365377 | Besen BS20 EV Charging Station Firmware Version Check ui layer","tags":["vdb-entry"],"url":"https://vuldb.com/vuln/365377"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/references/0
{"name":"VDB-365377 | CTI Indicators (IOB, IOC)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/365377/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:63a83f97f2d2039e35c7d88c28040b41eb694e047fd7a1829287f76d69ed0da1 · sha256:bfd5617e70f233af… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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