CVE-2021-34590: In Bender/ebee Charge Controllers in multiple versions are prone to Cross-site Scripting

Q: How do I fix CVE-2021-34590?

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.

Q: Is CVE-2021-34590 being exploited?

CVE-2021-34590 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-34590 affect?

CVE-2021-34590 affects cc612 firmware, icc15xx firmware. Severity is medium (CVSS 5.4). In Bender/ebee Charge Controllers in multiple versions are prone to Cross-site Scripting. An authenticated attacker could write HTML Code into configuration values. These values are not properly escaped when displayed.

Q: How urgent is CVE-2021-34590?

Priority 29/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADEUPGRADE

CVE-2021-34590 is a medium-severity flaw (CVSS 5.4) 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 Cross-site Scripting. An authenticated attacker could write HTML Code into configuration values. These values are not properly escaped when displayed.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-04-27
Last modified	2026-06-17

Publisher (CNA): CERT VDE · Vendor: bender

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

Am I affected?

Timeline

2022-04-27 16:15 UTCPublished CVE record published
2026-06-17 03:56 UTCUpdated Record last modified

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-2021-34590?

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-2021-34590 being exploited?

CVE-2021-34590 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-2021-34590 affect?

CVE-2021-34590 affects cc612 firmware, icc15xx firmware. Severity is medium (CVSS 5.4). In Bender/ebee Charge Controllers in multiple versions are prone to Cross-site Scripting. An authenticated attacker could write HTML Code into configuration values. These values are not properly escaped when displayed.

How urgent is CVE-2021-34590?

Priority 29/100. No elevated risk signals yet.

Related CVEs

CVE-2021-34602 HIGH 8.8 UPGRADE UPGRADE In Bender/ebee Charge Controllers in multiple versions are prone to Command injection via Web interface
CVE-2021-34601 CRITICAL 9.8 UPGRADE UPGRADE In Bender/ebee Charge Controllers in multiple versions are prone to Hardcoded Credentials
CVE-2021-34592 HIGH 8.8 UPGRADE UPGRADE In Bender/ebee Charge Controllers in multiple versions are prone to Command injection via Web interface
CVE-2021-34591 HIGH 7.8 UPGRADE UPGRADE In Bender/ebee Charge Controllers in multiple versions are prone to Local privilege Escalation
CVE-2021-34589 HIGH 7.5 UPGRADE UPGRADE In Bender/ebee Charge Controllers in multiple versions are prone to an RFID leak

References

← Back to latest CVEs