How severe is CVE-2023-4280?

CVE-2023-4280 has a CVSS 3.x base score of 9.3, rated critical 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 high.

Is CVE-2023-4280 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4280?

CVE-2023-4280 affects Silabs Gecko Software Development Kit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4280?

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.

Does CVE-2023-4280 have an EU (EUVD) identifier?

Yes. CVE-2023-4280 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54151.

When was CVE-2023-4280 published?

CVE-2023-4280 was published on 2024-01-02 and last updated on 2026-06-17.

CVE-2023-4280

CVE-2023-4280 is a critical-severity vulnerability in Silabs Gecko Software Development Kit with a CVSS 3.x base score of 9.3. 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-125.

Key facts

Severity: Critical (CVSS 3.x base score 9.3)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-54151
Weakness: CWE-125
Affected product: Silabs Gecko Software Development Kit
Published: 2024-01-02
Last modified: 2026-06-17

Description

An unvalidated input in Silicon Labs TrustZone implementation in v4.3.x and earlier of the Gecko SDK allows an attacker to access the trusted region of memory from the untrusted region.

Frequently asked questions

What is CVE-2023-4280?: An unvalidated input in Silicon Labs TrustZone implementation in v4.3.x and earlier of the Gecko SDK allows an attacker to access the trusted region of memory from the untrusted region.
How severe is CVE-2023-4280?: CVE-2023-4280 has a CVSS 3.x base score of 9.3, rated critical 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 high.
Is CVE-2023-4280 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4280?: CVE-2023-4280 affects Silabs Gecko Software Development Kit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4280?: 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.
Does CVE-2023-4280 have an EU (EUVD) identifier?: Yes. CVE-2023-4280 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54151.
When was CVE-2023-4280 published?: CVE-2023-4280 was published on 2024-01-02 and last updated on 2026-06-17.

References

Affected products (1)

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

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