Description
A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.
References (2)
Core 2
Core References
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf
Third Party Advisory, US Government Resource, Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02
Scores
CVSS v3
5.9
EPSS
0.0016
EPSS Percentile
36.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-321
CWE-798
Status
published
Products (8)
siemens/scalance_xr324-12m_firmware
< 4.1.0
siemens/scalance_xr324-12m_ts_firmware
< 4.1.0
siemens/scalance_xr324-4m_eec_firmware
< 4.1.0
siemens/scalance_xr324-4m_poe_firmware
< 4.1.0
siemens/scalance_xr324-4m_poe_ts_firmware
< 4.1.0
siemens/scalance_xr324wg_firmware
< 4.1.0
siemens/scalance_xr326-2c_poe_wg_firmware
< 4.1.0
siemens/scalance_xr328-4c_wg_firmware
< 4.1.0
Published
Jan 12, 2021
Tracked Since
Feb 18, 2026