CVE-2021-34485.NET Core and Visual Studio Information Disclosure Vulnerability
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It affects microsoft .net and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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.NET Core and Visual Studio Information Disclosure Vulnerability
- CVSS
- 5.0 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-200
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
microsoft .net microsoft:.net | from 5.0 through 5.0.8 | NVD |
microsoft .net_core microsoft:.net_core | from 2.1 through 2.1.28; from 3.1 through 3.1.17 | NVD |
microsoft powershell_core microsoft:powershell_core | from 7.0 before 7.0.7; from 7.1 before 7.1.4 | NVD |
microsoft visual_studio_2017 microsoft:visual_studio_2017 | from 15.0 through 15.9 | NVD |
microsoft visual_studio_2019 microsoft:visual_studio_2019 | from 16.0 through 16.10 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34485
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34485patch, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.