CVE-2026-5846

high

Description

The affected Watchfire Controller Software contains self-signed hard-coded RSA private keys and corresponding X.509 certificates used for authenticating and encrypting HTTPS/TLS connections to the controller's built-in web management interface. These keys are embedded in plaintext within the application patch binaries in the firmware directly from Watchfire's Remote Support filestore.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-09

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-09.json

Details

Source: Mitre, NVD

Published: 2026-07-30

Updated: 2026-07-31

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:N/AC:H/Au:M/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 5.7

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 7.6

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00163