VulnerabilityModified
CVE-2021-26434
Visual Studio Elevation of Privilege Vulnerability
HIGH 7.8EPSS 0.89%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Visual Studio Elevation of Privilege Vulnerability
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.89% probability · 59th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- microsoft/visual studio 2017 · microsoft/visual studio 2019
- Source
- secure@microsoft.com
EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26434
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26434Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1077/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.