CVE-2021-34589

Bender Charge Controller: RFID leak

HIGH

7.5

CVSS Score

Published: April 27, 2022 at 03:15 PM UTC

Updated: June 17, 2026 at 03:56 AM UTC

13 products affected across 2 vendorsICC15XX FirmwareCC612 FirmwareICC16XX Firmware

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Severity

HIGH7.5

Exploit prediction

EPSS 1.0%

Description

In Bender/ebee Charge Controllers in multiple versions are prone to an RFID leak. The RFID of the last charge event can be read without authentication via the web interface.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CC612 Firmware · Bender

95%

5.11.0 ≤ v < 5.11.25.12.0 ≤ v < 5.12.55.13.0 ≤ v < 5.13.25.20.0 ≤ v < 5.20.2

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

bender-cc612 (same device)

CC613 Firmware · Bender

95%

5.11.0 ≤ v < 5.11.25.13.0 ≤ v < 5.13.25.20.0 ≤ v < 5.20.2

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

bender-cc613 (same device)

ICC15XX Firmware · Bender

95%

5.11.0 ≤ v < 5.11.25.12.0 ≤ v < 5.12.55.13.0 ≤ v < 5.13.25.20.0 ≤ v < 5.20.2

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

bender-icc15xx (same device)

ICC16XX Firmware · Bender

95%

5.11.0 ≤ v < 5.11.25.12.0 ≤ v < 5.12.55.13.0 ≤ v < 5.13.25.20.0 ≤ v < 5.20.2

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

bender-icc16xx (same device)

ICC613 Firmware · Bender

95%

5.12.0 ≤ v < 5.12.5

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

bender-cc613 (same device)

CC612 · Bender Ebee

60%

5.11.x ≤ v < 5.11.25.12.x ≤ v < 5.12.55.13.x ≤ v < 5.13.25.20.x ≤ v < 5.20.25.11.x 5.12.x 5.13.x 5.20.x

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

CC613 · Bender Ebee

60%

5.11.x ≤ v < 5.11.25.12.x ≤ v < 5.12.55.13.x ≤ v < 5.13.25.20.x ≤ v < 5.20.25.11.x 5.12.x 5.13.x 5.20.x

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

ICC15xx · Bender Ebee

60%

5.11.x ≤ v < 5.11.25.12.x ≤ v < 5.12.55.13.x ≤ v < 5.13.25.20.x ≤ v < 5.20.25.11.x 5.12.x 5.13.x 5.20.x

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

ICC16xx · Bender Ebee

60%

5.11.x ≤ v < 5.11.25.12.x ≤ v < 5.12.55.13.x ≤ v < 5.13.25.20.x ≤ v < 5.20.25.11.x 5.12.x 5.13.x 5.20.x

Affected range stops below 5.11.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.20.2, so it looks safe — our inference, not a vendor statement

CC612 · Benderdevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://cert.vde.com/en/advisories/VDE-2021-047

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://cert.vde.com/en/advisories/VDE-2021-047

CVSS

7.5HIGHCERTVDE

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200

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