How severe is CVE-2023-48693?

CVE-2023-48693 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2023-48693 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-48693?

CVE-2023-48693 affects Microsoft Azure Rtos Threadx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-48693?

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-2023-48693 published?

CVE-2023-48693 was published on 2023-12-05 and last updated on 2026-06-17.

CVE-2023-48693

CVE-2023-48693 is a high-severity vulnerability in Microsoft Azure Rtos Threadx with a CVSS 3.x base score of 8.7. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Azure Rtos Threadx
Published: 2023-12-05
Last modified: 2026-06-17

Description

Azure RTOS ThreadX is an advanced real-time operating system (RTOS) designed specifically for deeply embedded applications. An attacker can cause arbitrary read and write due to vulnerability in parameter checking mechanism in Azure RTOS ThreadX, which may lead to privilege escalation. The affected components include RTOS ThreadX v6.2.1 and below. The fixes have been included in ThreadX release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Frequently asked questions

What is CVE-2023-48693?: Azure RTOS ThreadX is an advanced real-time operating system (RTOS) designed specifically for deeply embedded applications. An attacker can cause arbitrary read and write due to vulnerability in parameter checking mechanism in Azure RTOS ThreadX, which may lead to privilege escalation. The affected components include RTOS ThreadX v6.2.1 and below. The fixes have been included in ThreadX release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
How severe is CVE-2023-48693?: CVE-2023-48693 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2023-48693 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-48693?: CVE-2023-48693 affects Microsoft Azure Rtos Threadx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-48693?: 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-2023-48693 published?: CVE-2023-48693 was published on 2023-12-05 and last updated on 2026-06-17.

References

https://github.com/azure-rtos/threadx/security/advisories/GHSA-p7w6-62rq-vrf9

Affected products (1)

cpe:2.3:o:microsoft:azure_rtos_threadx:*:*:*:*:*:*:*:*

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