Is CVE-2020-1133 in the CISA KEV catalog?

No. CVE-2020-1133 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-1133?

CVE-2020-1133 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-1133?

CVE-2020-1133 has an EPSS score of 0.98% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-1133?

Upgrade visual studio 2017 to 15.9.27 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-1133

MEDIUM

5.5

CVSS v3

NVD

Description

An elevation of privilege vulnerability exists when the Diagnostics Hub Standard Collector improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Diagnostics Hub Standard Collector handles file operations.

How to fix

Remediation Available

visual studio 2017NVD

Affected:>= 15.0, < 15.9.27Fixed in:15.9.27CVE-2020-1133derived from NVD

visual studio 2019NVD

Affected:>= 16.5, < 16.7.3Fixed in:16.7.3CVE-2020-1133derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.98%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-23.