How severe is CVE-2023-2686?

CVE-2023-2686 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-2686 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2686?

CVE-2023-2686 affects Silabs Gecko Software Development Kit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-2686?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-2686 published?

CVE-2023-2686 was published on 2023-06-15 and last updated on 2026-06-17.

CVE-2023-2686

CVE-2023-2686 is a critical-severity vulnerability in Silabs Gecko Software Development Kit with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Silabs Gecko Software Development Kit
Published: 2023-06-15
Last modified: 2026-06-17

Description

Buffer overflow in Wi-Fi Commissioning MicriumOS example in Silicon Labs Gecko SDK v4.2.3 or earlier allows connected device to write payload onto the stack.

Frequently asked questions

What is CVE-2023-2686?: Buffer overflow in Wi-Fi Commissioning MicriumOS example in Silicon Labs Gecko SDK v4.2.3 or earlier allows connected device to write payload onto the stack.
How severe is CVE-2023-2686?: CVE-2023-2686 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-2686 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2686?: CVE-2023-2686 affects Silabs Gecko Software Development Kit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-2686?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-2686 published?: CVE-2023-2686 was published on 2023-06-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:silabs:gecko_software_development_kit:*:*:*:*:*:*:*:*

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