Description
MicroServer copies parts of the system firmware to an unencrypted external SD card on boot, which contains user and vendor secrets. An attacker can utilize these plaintext secrets to modify the vendor firmware, or gain admin access to the web portal.
References (2)
Core 2
Core References
Various Sources
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-006-01.json
Third Party Advisory, US Government Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-26-006-01
Scores
CVSS v3
6.5
EPSS
0.0001
EPSS Percentile
0.8%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-313
Status
published
Products (1)
Columbia Weather Systems/MicroServer
< MS_4.1_14142
Published
Jan 07, 2026
Tracked Since
Feb 18, 2026