What is CVE-2020-1133?

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 severe is CVE-2020-1133?

CVE-2020-1133 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-1133 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1133?

CVE-2020-1133 primarily affects Microsoft Visual Studio. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-1133?

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

When was CVE-2020-1133 published?

CVE-2020-1133 was published on 2020-09-11 and last updated on 2026-06-17.

CVE-2020-1133

CVE-2020-1133 is a medium-severity vulnerability in Microsoft Visual Studio with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.6
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Visual Studio
Published: 2020-09-11
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-1133?: 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 severe is CVE-2020-1133?: CVE-2020-1133 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-1133 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1133?: CVE-2020-1133 primarily affects Microsoft Visual Studio. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-1133?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-1133 published?: CVE-2020-1133 was published on 2020-09-11 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1133

Affected products (16)

cpe:2.3:a:microsoft:visual_studio:2015:update3:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Visual Studio

CVE-2009-3126 — Critical (CVSS 9.3): Integer overflow in GDI+ in Microsoft Internet Explorer 6 SP1, Windows XP SP2 and SP3, Office XP SP3, Office 2003 SP3,…
CVE-2009-2528 — Critical (CVSS 9.3): GDI+ in Microsoft Office XP SP3 does not properly handle malformed objects in Office Art Property Tables, which allows…
CVE-2009-2504 — Critical (CVSS 9.3): Multiple integer overflows in unspecified APIs in GDI+ in Microsoft .NET Framework 1.1 SP1, .NET Framework 2.0 SP1 and…
CVE-2009-2503 — Critical (CVSS 9.3): GDI+ in Microsoft Internet Explorer 6 SP1, Windows XP SP2 and SP3, Windows Server 2003 SP2, Office XP SP3, Office 2003…
CVE-2009-2501 — Critical (CVSS 9.3): Heap-based buffer overflow in GDI+ in Microsoft Internet Explorer 6 SP1, Windows XP SP2 and SP3, Office XP SP3, Office…
CVE-2009-2500 — Critical (CVSS 9.3): Integer overflow in GDI+ in Microsoft Internet Explorer 6 SP1, Windows XP SP2 and SP3, Office XP SP3, Office 2003 SP3,…

All CVEs affecting Microsoft Visual Studio →