Description
BrightSign players running BrightSign OS series 4 prior to v8.5.53.1 or series 5 prior to v9.0.166 use a default password that is guessable with knowledge of the device information. The latest release fixes this issue for new installations; users of old installations are encouraged to change all default passwords.
References (3)
Core 3
Core References
Various Sources
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-126-03.json
Various Sources
https://www.brightsign.biz/resources/software-downloads/
Third Party Advisory, US Government Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-25-126-03
Scores
CVSS v3
8.4
EPSS
0.0013
EPSS Percentile
2.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-1392
Status
published
Products (2)
BrightSign/BrightSign OS series 4 players
< v8.5.53.1
BrightSign/BrightSign OS series 5 players
< v9.0.166
Published
Feb 12, 2026
Tracked Since
Feb 18, 2026