CVE-2026-5846
Hard-coded Cryptographic Key in Watchfire Controllers
02 Description
Hard-coded Cryptographic Key in Watchfire Controllers
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.21% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 11.5% of scored records. A rank, not a probability.
- NVD base score
- 7.6 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS 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/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
- NVD analysis status
- Deferred. NVD last modified this record on 2026-09-08.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-07-30 21:12Z3 MO AGO
- Last updated
- 2026-07-31 20:12Z2 MO AGO
- Reserved
- 2026-04-08
- Assigning CNA
- icscert
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.6)
- CNA CVSS 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
- Weaknesses
- CWE-321Use of Hard-coded Cryptographic KeyVariant
- Data version
- 5.2
- Document digest
- c8cc2c2cf1b0b67ede89fb04c09c502eb8e3eb3c5dbfcc8bfb38f57e20e7a8f3
05 Affected products
06 References
07 Remediation
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