How severe is CVE-2018-0787?

CVE-2018-0787 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-2018-0787 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0787?

CVE-2018-0787 primarily affects Microsoft Asp.net Core. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0787?

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-2018-0787 published?

CVE-2018-0787 was published on 2018-03-14 and last updated on 2026-06-17.

CVE-2018-0787

CVE-2018-0787 is a high-severity vulnerability in Microsoft Asp.net Core 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-640.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-640
Affected product: Microsoft Asp.net Core
Published: 2018-03-14
Last modified: 2026-06-17

Description

ASP.NET Core 1.0. 1.1, and 2.0 allow an elevation of privilege vulnerability due to how web applications that are created from templates validate web requests, aka "ASP.NET Core Elevation Of Privilege Vulnerability".

Frequently asked questions

What is CVE-2018-0787?: ASP.NET Core 1.0. 1.1, and 2.0 allow an elevation of privilege vulnerability due to how web applications that are created from templates validate web requests, aka "ASP.NET Core Elevation Of Privilege Vulnerability".
How severe is CVE-2018-0787?: CVE-2018-0787 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-2018-0787 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0787?: CVE-2018-0787 primarily affects Microsoft Asp.net Core. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0787?: 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-2018-0787 published?: CVE-2018-0787 was published on 2018-03-14 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:microsoft:asp.net_core:1.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:asp.net_core:1.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:asp.net_core:2.0:*:*:*:*:*:*:*

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