LENZE: Missing password verification in authorisation procedure

published 2022-07-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34574

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.1%; EPSS 2.1% chance of exploitation in 30 days, percentile 82%
public exploits: 0; none known

Multiple Lenze products of the cabinet series skip the password verification upon second login. After a user has been logged on to the device once, a remote attacker can get full access without knowledge of the password.

Patch / fix

fixed in 3

LENZE cabinet c520 V01.08.01.3021
LENZE cabinet c550 V01.08.01.3021
LENZE cabinet c750 V01.08.01.3021

Exploit prediction

2.14% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

LENZE cabinet c520
LENZE cabinet c550
LENZE cabinet c750

Classification

Weakness

CWE-304 Missing Critical Step in Authentication
CWE-287 Improper Authentication

References

cert.vde.com /en/advisories/VDE-2022-030/
mitigation, third-party-advisory

Sources

CVE List CVE-2022-2302
NVD CVE-2022-2302

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