CVE-2023-4420 json
A remote unprivileged attacker can intercept the communication via e.g.
published 2023-08-24 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54283
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
A remote unprivileged attacker can intercept the communication via e.g. Man-In-The-Middle, due to the absence of Transport Layer Security (TLS) in the SICK LMS5xx. This lack of encryption in the communication channel can lead to the unauthorized disclosure of sensitive information. The attacker can exploit this weakness to eavesdrop on the communication between the LMS5xx and the Client, and potentially manipulate the data being transmitted.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% 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 | 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
- SICK AG LMS5xx
- sick lms5xx
Classification
- Weakness
-
- CWE-311 Missing Encryption of Sensitive Data
References
-
sick.com
/.well-known/csaf/white/2023/sca-2023-0007.pdf
vendor-advisory
-
sick.com
/psirt
issue-tracking, vendor-advisory
-
sick.com
/.well-known/csaf/white/2023/sca-2023-0007.json
vendor-advisory
Sources
- CVE List CVE-2023-4420
- NVD CVE-2023-4420
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.