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NVD / CVE Program· CNA CERTVDE

CVE-2021-34587: Bender Charge Controller: Long URL could lead to webserver crash

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.91% (FIRST EPSS); higher than 60.1% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In Bender/ebee Charge Controllers in multiple versions a long URL could lead to webserver crash. The URL is used as input of an sprintf to a stack variable.

MediumCVSS 5.3 · v3.1—No exploit No fix recorded
Published
Apr 27, 2022
Updated
Jun 16, 2026
EPSS
0.9% · 60th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.9%

CNA vs NVD score

NVD
5.3
CNA · CERTVDE
5.3
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-34587

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
bendercc612 firmware
bendercc612
bendercc613 firmware
bendercc613
bendericc15xx firmware
bendericc15xx
bendericc16xx firmware
bendericc16xx
ibm ibm rational lifecycle integration adapter for windchill

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • bender cc612 firmware5.20.0 and later · before 5.20.2
  • bender cc612 firmware5.11.0 and later · before 5.11.2
  • bender cc612 firmware5.12.0 and later · before 5.12.5
  • bender cc612 firmware5.13.0 and later · before 5.13.2
  • bender cc613 firmware5.13.0 and later · before 5.13.2
  • bender cc613 firmware5.11.0 and later · before 5.11.2
  • bender cc613 firmware5.12.0 and later · before 5.12.5
  • bender cc613 firmware5.20.0 and later · before 5.20.2
  • bender icc15xx firmware5.13.0 and later · before 5.13.2
  • bender icc15xx firmware5.11.0 and later · before 5.11.2
  • bender icc15xx firmware5.12.0 and later · before 5.12.5
  • bender icc15xx firmware5.20.0 and later · before 5.20.2
  • bender icc16xx firmware5.20.0 and later · before 5.20.2
  • bender icc16xx firmware5.11.0 and later · before 5.11.2
  • bender icc16xx firmware5.12.0 and later · before 5.12.5
  • bender icc16xx firmware5.13.0 and later · before 5.13.2
  • ibm ibm rational lifecycle integration adapter for windchill1.0.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (CERTVDE). Independent of NVD's CPE analysis and usually ahead of it.

  • Bender / ebee CC612

    • 5.11.x and later · before 5.11.2affected
    • 5.12.x and later · before 5.12.5affected
    • 5.13.x and later · before 5.13.2affected
    • 5.20.x and later · before 5.20.2affected

  • Bender / ebee CC613

    • 5.11.x and later · before 5.11.2affected
    • 5.12.x and later · before 5.12.5affected
    • 5.13.x and later · before 5.13.2affected
    • 5.20.x and later · before 5.20.2affected

  • Bender / ebee ICC15xx

    • 5.11.x and later · before 5.11.2affected
    • 5.12.x and later · before 5.12.5affected
    • 5.13.x and later · before 5.13.2affected
    • 5.20.x and later · before 5.20.2affected

  • Bender / ebee ICC16xx

    • 5.11.x and later · before 5.11.2affected
    • 5.12.x and later · before 5.12.5affected
    • 5.13.x and later · before 5.13.2affected
    • 5.20.x and later · before 5.20.2affected

Same product

bender: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-34601Bender Charge Controller: Hardcoded Credentials in Charge Controller
    39Monitor
  • CVE-2021-34602Bender Charge Controller: Long URL could lead to webserver crash
    35Monitor
  • CVE-2021-34592Bender Charge Controller: Command injection via Web interface
    35Monitor

Published before and after this one in the same product

  • Later →CVE-2021-34588Apr 27, 2022 · Bender Charge Controller: Unprotected data export
    34Monitor
  • Later →CVE-2021-34589Apr 27, 2022 · Bender Charge Controller: RFID leak
    30Monitor
  • Later →CVE-2021-34590Apr 27, 2022 · Bender Charge Controller: Cross-site Scripting
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records