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.
Published: 2026-07-30
Score: 7.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Watchfire has applied the required security patch to all affected controllers under its management. Watchfire recommends users verify their controller software version and upgrade to one of the approved versions below, if they are not already on an approved patch level. Watchfire has issued patches to disable the use of the existing certificate as follows:  * BC550 12.30: Patch to 12.31 SP1 * BC750 11.33: Patch to 11.34 * BC750 12.35: Patch to 12.36 SP1 * BC760 12.38: Patch to 12.41 SP1 * BC760 13.00: Patch to 14.00 SP1 * BC760DC 12.39: Patch to 12.41 SP1

Tracking

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Advisories

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History

Sun, 02 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Watchfire
Watchfire bc550
Watchfire bc750
Watchfire bc760
Watchfire bc760dc
Vendors & Products Watchfire
Watchfire bc550
Watchfire bc750
Watchfire bc760
Watchfire bc760dc

Fri, 31 Jul 2026 20:15:00 +0000

Type Values Removed Values Added
Title Hard-coded Cryptographic Key in Watchfire Signs Controllers Hard-coded Cryptographic Key in Watchfire Controllers

Fri, 31 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 30 Jul 2026 21:30:00 +0000

Type Values Removed Values Added
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.
Title Hard-coded Cryptographic Key in Watchfire Signs Controllers
Weaknesses CWE-321
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N'}

cvssV4_0

{'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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-07-31T20:12:49.282Z

Reserved: 2026-04-08T18:55:38.436Z

Link: CVE-2026-5846

cve-icon Vulnrichment

Updated: 2026-07-31T15:31:29.453Z

cve-icon NVD

Status : Received

Published: 2026-07-30T22:16:55.107

Modified: 2026-07-31T16:17:08.500

Link: CVE-2026-5846

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T10:30:18Z

Weaknesses