CVE-2023-49252 json
A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.7).
published 2024-01-09 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-53254
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.7). The affected application allows IP configuration change without authentication to the device. This could allow an attacker to cause denial of service condition.
Patch / fix
- siemens simatic_cn_4100_firmware 2.7
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-24-011-09 updated cvss 7.5
Siemens SIMATIC CN 4100
-
Siemens SIMATIC CN 4100 <V2.7affected: fixed in V2.7 support.industry.siemens.com
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Siemens SIMATIC CN 4100
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
cert-portal.siemens.com
/productcert/pdf/ssa-777015.pdf
patch, vendor-advisory
Sources
- CVE List CVE-2023-49252
- NVD CVE-2023-49252
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.