CVE-2026-5846
Hard-coded Cryptographic Key in Watchfire Signs Controllers
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.
INFO
Published Date :
July 30, 2026, 10:16 p.m.
Last Modified :
July 30, 2026, 10:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-5846
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 7d14cffa-0d7d-4270-9dc0-52cabd5a23a6 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | 7d14cffa-0d7d-4270-9dc0-52cabd5a23a6 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Obtain and apply the latest software patch from Watchfire.
- Verify that hard-coded keys have been removed.
- Review security configurations for the management interface.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-5846.
| URL | Resource |
|---|---|
| https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-09.json | |
| https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-09 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-5846 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-5846
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-5846 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-5846 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jul. 30, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Watchfire', 'product': 'BC550', 'versions': [{'status': 'affected', 'version': '12.30'}, {'status': 'unaffected', 'version': '12.31 SP1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Watchfire', 'product': 'BC750', 'versions': [{'status': 'affected', 'version': '11.33'}, {'status': 'unaffected', 'version': '11.34'}, {'status': 'affected', 'version': '12.35'}, {'status': 'unaffected', 'version': '12.36 SP1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Watchfire', 'product': 'BC760', 'versions': [{'status': 'affected', 'version': '12.38'}, {'status': 'unaffected', 'version': '12.41 SP1'}, {'status': 'affected', 'version': '13.00'}, {'status': 'unaffected', 'version': '14.00 SP1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Watchfire', 'product': 'BC760DC', 'versions': [{'status': 'affected', 'version': '12.39'}, {'status': 'unaffected', 'version': '12.41 SP1'}], 'defaultStatus': 'unaffected'}] 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. Added CVSS V4.0 AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N Added CWE CWE-321 Added Reference https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-09.json Added Reference https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-09