How severe is CVE-2023-1262?

CVE-2023-1262 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-2023-1262 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1262?

CVE-2023-1262 affects Silabs Wireless Smart Ubiquitous Network Linux Border Router Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-1262?

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-2023-1262 published?

CVE-2023-1262 was published on 2023-03-21 and last updated on 2026-06-17.

CVE-2023-1262

CVE-2023-1262 is a high-severity vulnerability in Silabs Wireless Smart Ubiquitous Network Linux Border Router Firmware 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% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Silabs Wireless Smart Ubiquitous Network Linux Border Router Firmware
Published: 2023-03-21
Last modified: 2026-06-17

Description

Missing MAC layer security in Silicon Labs Wi-SUN Linux Border Router v1.5.2 and earlier allows malicious node to route malicious messages through network.

Frequently asked questions

What is CVE-2023-1262?: Missing MAC layer security in Silicon Labs Wi-SUN Linux Border Router v1.5.2 and earlier allows malicious node to route malicious messages through network.
How severe is CVE-2023-1262?: CVE-2023-1262 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-2023-1262 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1262?: CVE-2023-1262 affects Silabs Wireless Smart Ubiquitous Network Linux Border Router Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-1262?: 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-2023-1262 published?: CVE-2023-1262 was published on 2023-03-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:silabs:wireless_smart_ubiquitous_network_linux_border_router_firmware:*:*:*:*:*:*:*:*

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