Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2021-34601: In Bender/ebee Charge Controllers in multiple versions are prone to Hardcoded Credentials

56
This month
CRITICAL 9.8REMOTEUPGRADEUPGRADE

CVE-2021-34601 is a critical-severity flaw (CVSS 9.8) affecting cc612 firmware, icc15xx firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Bender/ebee Charge Controllers in multiple versions are prone to Hardcoded Credentials. Bender charge controller CC612 in version 5.20.1 and below is prone to hardcoded ssh credentials. An attacker may use the password to gain administrative access to the web-UI.

Why this priority

  • Critical severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.1% (top 35%)
CISA exploited listNo
WeaknessCWE-259, CWE-798
Published2022-04-27
Last modified2026-06-17
Publisher (CNA): CERT VDE · Vendor: bender

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

bender cc612 firmware UPGRADE
Affected: >= 5.11.0 and < 5.11.2 · >= 5.12.0 and < 5.12.5 · >= 5.13.0 and < 5.13.2 · >= 5.20.0 and < 5.20.2
Fixed in: 5.11.2, 5.12.5, 5.13.2, 5.20.2
Safe to downgrade to: a release before 5.11.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
bender icc15xx firmware UPGRADE
Affected: >= 5.11.0 and < 5.11.2 · >= 5.12.0 and < 5.12.5 · >= 5.13.0 and < 5.13.2 · >= 5.20.0 and < 5.20.2
Fixed in: 5.11.2, 5.12.5, 5.13.2, 5.20.2
Safe to downgrade to: a release before 5.11.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-34601?

cc612 firmware: upgrade to 5.11.2, 5.12.5, 5.13.2, 5.20.2; icc15xx firmware: upgrade to 5.11.2, 5.12.5, 5.13.2, 5.20.2. Exact commands for each OS are on this page.

Is CVE-2021-34601 being exploited?

CVE-2021-34601 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-34601 affect?

CVE-2021-34601 affects cc612 firmware, icc15xx firmware. Severity is critical (CVSS 9.8). In Bender/ebee Charge Controllers in multiple versions are prone to Hardcoded Credentials. Bender charge controller CC612 in version 5.20.1 and below is prone to hardcoded ssh credentials. An attacker may use the password to gain administra

How urgent is CVE-2021-34601?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.