How severe is CVE-2020-9060?

CVE-2020-9060 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-9060 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9060?

CVE-2020-9060 primarily affects Silabs 500 Series Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-9060?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-9060 published?

CVE-2020-9060 was published on 2022-01-10 and last updated on 2026-06-17.

CVE-2020-9060

CVE-2020-9060 is a medium-severity vulnerability in Silabs 500 Series Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Silabs 500 Series Firmware
Published: 2022-01-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-9060?: 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.
How severe is CVE-2020-9060?: CVE-2020-9060 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-9060 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9060?: CVE-2020-9060 primarily affects Silabs 500 Series Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-9060?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9060 published?: CVE-2020-9060 was published on 2022-01-10 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:silabs:500_series_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:aeotec:zw090-a:3.95:*:*:*:*:*:*:*
cpe:2.3:o:fibaro:fgwpb-111:4.3:*:*:*:*:*:*:*
cpe:2.3:o:zooz:zen20:5.03:*:*:*:*:*:*:*
cpe:2.3:o:zooz:zen25:5.03:*:*:*:*:*:*:*
cpe:2.3:o:zooz:zst10:6.04:*:*:*:*:*:*:*

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