Description
A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The `i2c` mutex file is created with the permissions bits of `-rw-rw-rw-`. This file is used as a mutex for multiple applications interacting with i2c. This could allow an authenticated attacker with access to the SSH interface on the affected device to interfere with the integrity of the mutex and the data it protects.
References (1)
Core 1
Core References
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-325383.pdf
Scores
CVSS v3
3.3
EPSS
0.0005
EPSS Percentile
14.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-378
Status
published
Products (1)
siemens/scalance_lpe9403_firmware
< 2.1
Published
May 09, 2023
Tracked Since
Feb 18, 2026