How severe is CVE-2023-21703?

CVE-2023-21703 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-21703 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21703?

CVE-2023-21703 primarily affects Microsoft Azure Data Box Gateway. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21703?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-21703 published?

CVE-2023-21703 was published on 2023-02-14 and last updated on 2026-06-17.

CVE-2023-21703

CVE-2023-21703 is a medium-severity vulnerability in Microsoft Azure Data Box Gateway with a CVSS 3.x base score of 6.5. 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-502.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Microsoft Azure Data Box Gateway
Published: 2023-02-14
Last modified: 2026-06-17

Description

Azure Data Box Gateway Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2023-21703?: Azure Data Box Gateway Remote Code Execution Vulnerability
How severe is CVE-2023-21703?: CVE-2023-21703 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-21703 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21703?: CVE-2023-21703 primarily affects Microsoft Azure Data Box Gateway. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21703?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21703 published?: CVE-2023-21703 was published on 2023-02-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21703

Affected products (2)

cpe:2.3:a:microsoft:azure_data_box_gateway:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:azure_stack_edge:-:*:*:*:*:*:*:*

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