How severe is CVE-2023-3487?

CVE-2023-3487 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-3487 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3487?

CVE-2023-3487 affects Silabs Gecko Bootloader. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3487?

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

When was CVE-2023-3487 published?

CVE-2023-3487 was published on 2023-10-20 and last updated on 2026-06-17.

CVE-2023-3487

CVE-2023-3487 is a high-severity vulnerability in Silabs Gecko Bootloader with a CVSS 3.x base score of 7.7. 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Silabs Gecko Bootloader
Published: 2023-10-20
Last modified: 2026-06-17

Description

An integer overflow in Silicon Labs Gecko Bootloader version 4.3.1 and earlier allows unbounded memory access when reading from or writing to storage slots.

Frequently asked questions

What is CVE-2023-3487?: An integer overflow in Silicon Labs Gecko Bootloader version 4.3.1 and earlier allows unbounded memory access when reading from or writing to storage slots.
How severe is CVE-2023-3487?: CVE-2023-3487 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-3487 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3487?: CVE-2023-3487 affects Silabs Gecko Bootloader. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3487?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-3487 published?: CVE-2023-3487 was published on 2023-10-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:silabs:gecko_bootloader:*:*:*:*:*:*:*:*

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