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EVBEE DC-80 CVE-2026-22097

| EUVDEUVD-2026-43331 CRITICAL
Improper Verification of Cryptographic Signature (CWE-347)
2026-07-13 DIVD
9.3
CVSS 4.0 · Vendor: DIVD
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Severity by source

Vendor (DIVD) PRIMARY
9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/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
vuln.today AI
10.0 CRITICAL

Network-reachable updater with no signature check and JWT-bypassable authorization gives AV:N/AC:L/PR:N; unsigned firmware install yields full C:H/I:H/A:H, and code execution reaching connected charging systems supports S:C.

3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Primary rating from Vendor (DIVD).

CVSS VectorVendor: DIVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Jul 13, 2026 - 12:01 EUVD
Analysis Generated
Jul 13, 2026 - 11:11 vuln.today
CVE Published
Jul 13, 2026 - 09:10 cve.org
CRITICAL 9.3

DescriptionCVE.org

The firmware update mechanism does not include cryptographic signature validation. This allows anyone with access to the firmware update capability to upload arbitrary files which can then lead to arbitrary code execution.

AnalysisAI

Arbitrary code execution in the EVBEE DC-80 EV charging station stems from a firmware update mechanism that ships without cryptographic signature validation (CWE-347), letting an attacker who reaches the update capability push a malicious firmware image and have it executed by the device. Reported by DIVD (advisory DIVD-2026-00001) with a CVSS 4.0 base score of 9.3 and a 'Jwt Attack' angle noted in triage tags, the flaw grants full compromise of the charger. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Technical ContextAI

The affected component is the firmware update pathway of the EVBEE DC-80, a network-reachable DC electric-vehicle charging unit (CPE cpe:2.3:a:evbee:dc-80). The root cause is CWE-347 (Improper Verification of Cryptographic Signature): the updater accepts and installs firmware images without verifying an authenticity/integrity signature, so it cannot distinguish vendor-signed firmware from attacker-supplied files. Combined with the 'Jwt Attack' tag, this suggests the update endpoint's authorization is JWT-based and may be forgeable or bypassable, allowing an attacker to reach an interface that then trusts any uploaded binary. Because uploaded firmware runs with the device's own privileges after installation, an unsigned upload converts directly into arbitrary code execution on the embedded controller.

RemediationAI

No vendor-released patch or fixed firmware version is identified in the provided data, so remediation should center on compensating controls until the vendor publishes signed firmware: place DC-80 chargers on an isolated management VLAN and block inbound access to the firmware update / management interface from untrusted networks and the internet, restricting it to a trusted administrative host or VPN (trade-off: legitimate remote firmware pushes must then originate from that controlled path). Because the 'Jwt Attack' tag implicates the authorization layer, rotate or invalidate any static or predictable JWT signing secrets and enforce short token lifetimes if configurable, and monitor the update endpoint for unexpected upload attempts. Track DIVD advisory DIVD-2026-00001 (https://csirt.divd.nl/DIVD-2026-00001/) for the official fix and, once available, upgrade to the vendor's signed-firmware release. Note that network isolation is the most reliable operator-side mitigation here, since the underlying missing-signature-check flaw cannot be closed without vendor firmware.

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CVE-2026-22097 vulnerability details – vuln.today

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