How severe is CVE-2020-9059?

CVE-2020-9059 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-2020-9059 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9059?

CVE-2020-9059 primarily affects Silabs 500 Series Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-9059?

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

When was CVE-2020-9059 published?

CVE-2020-9059 was published on 2022-01-10 and last updated on 2026-06-17.

CVE-2020-9059

CVE-2020-9059 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
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 S0 authentication are susceptible to uncontrolled resource consumption leading to battery exhaustion. As an example, the Schlage BE468 version 3.42 door lock is vulnerable and fails open at a low battery level.

Frequently asked questions

What is CVE-2020-9059?: Z-Wave devices based on Silicon Labs 500 series chipsets using S0 authentication are susceptible to uncontrolled resource consumption leading to battery exhaustion. As an example, the Schlage BE468 version 3.42 door lock is vulnerable and fails open at a low battery level.
How severe is CVE-2020-9059?: CVE-2020-9059 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-2020-9059 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9059?: CVE-2020-9059 primarily affects Silabs 500 Series Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-9059?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9059 published?: CVE-2020-9059 was published on 2022-01-10 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:silabs:500_series_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schlage:be468:3.42:*:*:*:*:*:*:*

More vulnerabilities in Silabs 500 Series Firmware

CVE-2020-9058 — High (CVSS 8.1): Z-Wave devices based on Silicon Labs 500 series chipsets using CRC-16 encapsulation, including but likely not limited…
CVE-2020-9061 — Medium (CVSS 6.5): Z-Wave devices using Silicon Labs 500 and 700 series chipsets, including but not likely limited to the SiLabs UZB-7…
CVE-2020-9060 — Medium (CVSS 6.5): Z-Wave devices based on Silicon Labs 500 series chipsets using S2, including but likely not limited to the ZooZ ZST10…

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