Z-Wave devices based on Silicon Labs 500 series chipsets using S2, including but likely not limited to the ZooZ ZST10 version 6.04, ZooZ ZEN20 version 5.03, ZooZ ZEN25 version 5.03, Aeon Labs ZW090-A version 3.95, and Fibaro FGWPB-111 version 4.3, are susceptible to denial of service and resource exhaustion via malformed SECURITY NONCE GET, SECURITY NONCE GET 2, NO OPERATION, or NIF REQUEST messages
Published Jan 7, 2022
6.5
MEDIUMCVSS 3.1
EPSS 0.53%
Description
Z-Wave devices based on Silicon Labs 500 series chipsets using S2, including but likely not limited to the ZooZ ZST10 version 6.04, ZooZ ZEN20 version 5.03, ZooZ ZEN25 version 5.03, Aeon Labs ZW090-A version 3.95, and Fibaro FGWPB-111 version 4.3, are susceptible to denial of service and resource exhaustion via malformed SECURITY NONCE GET, SECURITY NONCE GET 2, NO OPERATION, or NIF REQUEST messages.
Affected products
-
- Version 3.95StatusaffectedConstraints-
- Version
-
- Version 4.3StatusaffectedConstraints-
- Version
-
- Version allStatusaffectedConstraints-
- Version
-
- Version 5.03StatusaffectedConstraints-
- Version
-
- Version 5.03StatusaffectedConstraints-
- Version
-
- Version 6.04StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Aeon Labs | ZW090-A | n/a |
| ||||||
| Fibaro | Fgwpb-111 | n/a |
| ||||||
| Silicon Labs | 500 Series | n/a |
| ||||||
| ZooZ | ZEN20 | n/a |
| ||||||
| ZooZ | ZEN25 | n/a |
| ||||||
| ZooZ | ZST10 | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:A/AC:L/Au:N/C:N/I:N/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 3, 2026.
Score over time
2022–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.53% (0.00532) | 42.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00532) | 40.49th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00056) | 14.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00181) | 56.59th | v3 (v2023.03.01) |
| Jul 7, 2024 | 0.11% (0.00107) | 43.86th | v3 (v2023.03.01) |
| Aug 14, 2023 | 0.09% (0.00092) | 38.42th | v3 (v2023.03.01) |
| Jul 30, 2023 | 0.08% (0.00079) | 32.94th | v3 (v2023.03.01) |
| Jun 19, 2023 | 0.07% (0.00074) | 30.27th | v3 (v2023.03.01) |
| Apr 13, 2023 | 0.06% (0.00062) | 24.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00052) | 18.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.55% (0.01550) | 33.66th | v1 |
| Jan 8, 2022 | 1.55% (0.01550) | 33.02th | v1 |
| Jan 7, 2022 | 1.29% (0.01294) | 30.16th | v1 |
References (5)
- https://doi.org/10.1109/ACCESS.2021.3138768 x_refsource_MISCBroken Link
- https://github.com/CNK2100/VFuzz-public x_refsource_MISCThird Party Advisory
- https://ieeexplore.ieee.org/document/9663293 x_refsource_MISCBroken Link
- https://kb.cert.org/vuls/id/142629 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- https://www.kb.cert.org/vuls/id/142629 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| https://doi.org/10.1109/ACCESS.2021.3138768 | x_refsource_MISCBroken Link | |
| https://github.com/CNK2100/VFuzz-public | x_refsource_MISCThird Party Advisory | |
| https://ieeexplore.ieee.org/document/9663293 | x_refsource_MISCBroken Link | |
| https://kb.cert.org/vuls/id/142629 | third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource | |
| https://www.kb.cert.org/vuls/id/142629 | third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.