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Medium 4.3Published May 12, 2026

CVE-2026-32175.NET Core Tampering Vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Microsoft .NET 10.0 and 8 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A tampering vulnerability exists when .NET Core improperly handles specially crafted files. An attacker who successfully exploited this vulnerability could write arbitrary files and directories to certain locations on a vulnerable system. However, an attacker would have limited control over the destination of the files and directories. To exploit the vulnerability, an attacker must send a specially crafted file to a vulnerable system. The security update fixes the vulnerability by ensuring .NET Core properly handles files.

CVSS
4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C
Weakness (CWE)
CWE-36
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
microsoft
NVD analysis
Analyzed
Record last updated
Aug 10, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Microsoft .NET 10.0
microsoft:net_10.0 (from the name)
from 10.0.0 before 10.0.8
CNA record
Microsoft .NET 8.0
microsoft:net_8.0 (from the name)
from 8.0.0 before 8.0.27
CNA record
Microsoft .NET 9.0
microsoft:net_9.0 (from the name)
from 9.0.0 before 9.0.16
CNA record
Microsoft Microsoft Visual Studio 2022 version 17.12
microsoft:visual_studio_2022_version_17.12 (from the name)
from 17.12.0 before 17.12.20
CNA record
Microsoft Microsoft Visual Studio 2022 version 17.14
microsoft:visual_studio_2022_version_17.14 (from the name)
from 17.14.0 before 17.14.32
CNA record
Microsoft Microsoft Visual Studio 2026 version 18.5
microsoft:visual_studio_2026_version_18.5 (from the name)
from 18.5.0 before 18.5.3
CNA record
microsoft visual_studio_2022
microsoft:visual_studio_2022
from 17.12.0 before 17.12.20; from 17.14.0 before 17.14.32
NVD
microsoft visual_studio_2026
microsoft:visual_studio_2026
from 18.5.0 before 18.5.3
NVD
microsoft .net
microsoft:.net
from 8.0.0 before 8.0.27; from 9.0.0 before 9.0.16
NVD

References

References

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.

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