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CVE-2026-5846— Hard-coded Cryptographic Key in Watchfire Controllers

CVSS 5.7 · Medium EPSS 0.16% · P6

Possible ATT&CK Techniques 1AI

T1552.004 · Private Keys

Affected Version Matrix 12

VendorProductVersion RangeStatus
WatchfireBC55012.30affected
12.31 SP1unaffected
WatchfireBC75011.33affected
11.34unaffected
12.35affected
12.36 SP1unaffected
WatchfireBC76012.38affected
12.41 SP1unaffected
13.00affected
14.00 SP1unaffected
WatchfireBC760DC12.39affected
12.41 SP1unaffected
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I. Basic Information for CVE-2026-5846

Vulnerability Information
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Vulnerability Title
Hard-coded Cryptographic Key in Watchfire Controllers
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
WatchfireBC550 12.30 -
WatchfireBC750 11.33 -
WatchfireBC760 12.38 -
WatchfireBC760DC 12.39 -

II. Public POCs for CVE-2026-5846

#POC DescriptionSource LinkShenlong Link
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III. Intelligence Information for CVE-2026-5846

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Vendor Advisories for CVE-2026-5846 (2)

IV. Related Vulnerabilities

Same weakness: CWE-321

V. Comments for CVE-2026-5846

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