Bender Charge Controller: Long URL could lead to webserver crash

published 2022-04-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21237

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

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.

Patch / fix

fixed in 4

Bender / ebee CC612 5.11.2, 5.12.5, 5.13.2, 5.20.2
Bender / ebee CC613 5.11.2, 5.12.5, 5.13.2, 5.20.2
Bender / ebee ICC15xx 5.11.2, 5.12.5, 5.13.2, 5.20.2
Bender / ebee ICC16xx 5.11.2, 5.12.5, 5.13.2, 5.20.2

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

Bender / ebee CC612
Bender / ebee CC613
Bender / ebee ICC15xx
Bender / ebee ICC16xx

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-787 Out-of-bounds Write

References

cert.vde.com /en/advisories/VDE-2021-047
third-party-advisory

Sources

CVE List CVE-2021-34587
NVD CVE-2021-34587

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary