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Fencer Vulns
high 7.8

CVE-2023-29326 json

.NET Framework Remote Code Execution Vulnerability

published 2023-06-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32901

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

.NET Framework Remote Code Execution Vulnerability

Patch / fix

  • Microsoft Microsoft .NET Framework 3.5 AND 4.8 4.8.4644.0
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 4.7.4050.0
  • Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 10.0.14393.5989
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 4.8.9166.0
  • Microsoft Microsoft .NET Framework 2.0 Service Pack 2 3.0.6920.8954; 2.0.50727.8970
  • Microsoft Microsoft .NET Framework 3.0 Service Pack 2 3.0.6920.8954; 2.0.50727.8970
  • Microsoft Microsoft .NET Framework 3.5 3.0.6920.8954; 2.0.50727.8970
  • Microsoft Microsoft .NET Framework 3.5.1 3.0.6920.8954; 2.0.50727.8970
  • Microsoft Microsoft .NET Framework 3.5 and 4.6.2 10.0.10240.19983

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-29326 updated cvss 7.8

dotnet: Remote Code Execution Vulnerability

  • Red Hat .NET 6.0 on Red Hat Enterprise Linux rh-dotnet60-dotnet, rh-dotnet60-dotnet-host, rh-dotnet60-dotnet-sdk-6.0, rh-dotnet60-dotnet-hostfxr-6.0, rh-dotnet60-dotnet-runtime-6.0, rh-dotnet60-dotnet-templates-6.0, +6 more Red Hat Enterprise Linux 8 dotnet, dotnet6.0, dotnet7.0, dotnet-host, dotnet-sdk-6.0, dotnet-sdk-7.0, +17 more Red Hat Enterprise Linux 9 dotnet6.0, dotnet7.0, dotnet-host, dotnet-sdk-6.0, dotnet-sdk-7.0, dotnet-hostfxr-6.0, +16 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Microsoft .NET Framework 3.5 AND 4.8
  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2
  • Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
  • Microsoft Microsoft .NET Framework 3.5 AND 4.8.1
  • Microsoft Microsoft .NET Framework 2.0 Service Pack 2
  • Microsoft Microsoft .NET Framework 3.0 Service Pack 2
  • Microsoft Microsoft .NET Framework 3.5
  • Microsoft Microsoft .NET Framework 3.5.1
  • Microsoft Microsoft .NET Framework 3.5 and 4.6.2

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.