How severe is CVE-2023-1261?

CVE-2023-1261 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2023-1261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1261?

CVE-2023-1261 affects Silabs Wi-sun Software Development Kit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-1261?

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-2023-1261 published?

CVE-2023-1261 was published on 2023-03-21 and last updated on 2026-06-17.

CVE-2023-1261

CVE-2023-1261 is a high-severity vulnerability in Silabs Wi-sun Software Development Kit with a CVSS 3.x base score of 8.2. 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-862.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Silabs Wi-sun Software Development Kit
Published: 2023-03-21
Last modified: 2026-06-17

Description

Missing MAC layer security in Silicon Labs Wi-SUN SDK v1.5.0 and earlier allows malicious node to route malicious messages through network.

Frequently asked questions

What is CVE-2023-1261?: Missing MAC layer security in Silicon Labs Wi-SUN SDK v1.5.0 and earlier allows malicious node to route malicious messages through network.
How severe is CVE-2023-1261?: CVE-2023-1261 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2023-1261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1261?: CVE-2023-1261 affects Silabs Wi-sun Software Development Kit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-1261?: 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-2023-1261 published?: CVE-2023-1261 was published on 2023-03-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:silabs:wi-sun_software_development_kit:*:*:*:*:*:*:*:*

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