PT-2026-66611 · Watchfire · Bc550+3

CVE-2026-5846 · Published 2026-07-30 · Updated 2026-07-30

NVD

CVSS v3.1

5.7

Medium

Base vector

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

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.

Fix

Weakness Enumeration

CWE-321

Related Identifiers

CVE-2026-5846

Affected Products

Bc550

Bc750

Bc760

Bc760Dc

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-5846 · Security Note
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-09.json · Note
• https://cisa.gov/news-events/ics-advisories/icsa-26-211-09 · Note