Post Oak Bluetooth Traffic Systems Insufficient Entropy
Published Dec 8, 2012
7.6
HIGHCVSS 2.0
EPSS 1.55%
Description
Post Oak AWAM Bluetooth Reader Traffic System does not use a sufficient source of entropy for private keys, which makes it easier for man-in-the-middle attackers to spoof a device by predicting a key value.
Affected products
-
- Version All versionsStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Post Oak Traffic Systems | AWAM Bluetooth Reader Traffic System | unaffected |
|
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Post Oak has developed a patch for the AWAM Bluetooth Reader Traffic System that mitigates the vulnerability. The patch allows the Bluetooth reader to ensure sufficient entropy exists before generating host and authentication keys. The patch will be installed on all new devices when initially configured. Existing equipment will be patched by remote access and upgraded to the latest firmware. System owners are encouraged to contact Post Oak Traffic Systems, support@postoaktraffic.com, (281) 381-2887. with questions patching their systems.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.55% (0.01547) | 74.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.42% (0.01418) | 69.23th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.34% (0.00344) | 54.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.11% (0.00111) | 46.05th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.12% (0.00117) | 44.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00111) | 42.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (3)
- http://www.postoaktraffic.com/contact.aspx
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-335-01.pdf US Government Resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-12-335-01
| Link | Providers | Tags |
|---|---|---|
| http://www.postoaktraffic.com/contact.aspx | ||
| http://www.us-cert.gov/control_systems/pdf/ICSA-12-335-01.pdf | US Government Resource | |
| https://www.cisa.gov/news-events/ics-advisories/icsa-12-335-01 |
Change history (0)
No recorded changes yet.