MEDIUM
CVE-2021-34587
CWE-121Published: April 27, 2022· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2021-34587 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://cert.vde.com/en/advisories/VDE-2021-047Third Party Advisory
→
https://cert.vde.com/en/advisories/VDE-2021-047Third Party Advisory
Quick Facts
CVE IDCVE-2021-34587
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-121
CISA KEVNo
Affected2 vendor(s)
PublishedApr 27, 2022
Related CVEs (CWE-121)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-34587 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.