How severe is CVE-2023-38151?

CVE-2023-38151 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-38151 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38151?

CVE-2023-38151 primarily affects Microsoft Host Integration Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-38151?

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-2023-38151 published?

CVE-2023-38151 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-38151

CVE-2023-38151 is a high-severity vulnerability in Microsoft Host Integration Server with a CVSS 3.x base score of 8.8. 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-908.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-908
Affected product: Microsoft Host Integration Server
Published: 2023-11-14
Last modified: 2026-06-17

Description

Microsoft Host Integration Server 2020 Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2023-38151?: Microsoft Host Integration Server 2020 Remote Code Execution Vulnerability
How severe is CVE-2023-38151?: CVE-2023-38151 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-38151 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38151?: CVE-2023-38151 primarily affects Microsoft Host Integration Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-38151?: 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-2023-38151 published?: CVE-2023-38151 was published on 2023-11-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38151

Affected products (2)

cpe:2.3:a:microsoft:host_integration_server:2020:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:ole_db_provider:7.0:*:*:*:*:db2:*:*

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