CVE-2026-9396

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 18.9% of scored records. A rank, not a probability.

NVD base score

2.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-07-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-05-24 20:15Z3 MO AGO

Last updated

2026-05-26 15:32Z3 MO AGO

Reserved

2026-05-24

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-1021Improper Restriction of Rendered UI Layers or FramesBase

Data version

5.2

Document digest

bfd5617e70f233afebbe88ef715ae2974447e048375223117e2c2527c83f7345

• vuldb.comVDB-365377 | Besen BS20 EV Charging Station Firmware Version Check ui layerhttps://vuldb.com/vuln/365377vdb-entry
• vuldb.comVDB-365377 | CTI Indicators (IOB, IOC)https://vuldb.com/vuln/365377/ctisignaturepermissions-required
• vuldb.comSubmit #813575 | Besen EV Charging Station BS20 EV Charger Improper Verification of Cryptographic Signaturehttps://vuldb.com/submit/813575third-party-advisory
• github.comhttps://github.com/carfeii/besen#finding-3-firmware-version-check-manipulation-and-ui-spoofingrelated