CVE-2026-70354 PUBLISHED

.NET Core Remote Code Execution Vulnerability

Assigner: microsoft
Reserved: 04.08.2026 Published: 11.08.2026 Updated: 12.08.2026

Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.

Metrics

CVSS Vector: 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
CVSS Score: 7.8

Product Status

Vendor Microsoft
Product .NET 10.0
Versions
  • affected from 10.0.0 to 10.0.11 (excl.)
Vendor Microsoft
Product .NET 8.0
Versions
  • affected from 8.0.0 to 8.0.30 (excl.)
Vendor Microsoft
Product .NET 9.0
Versions
  • affected from 9.0.0 to 9.0.19 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 3.5
Versions
  • affected from 3.5.0 to 2.0.50727.8984 & 3.0.30729.8980 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
Versions
  • affected from 3.0.0.0 to 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4144.0 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 3.5 AND 4.7.2
Versions
  • affected from 4.7.0 to 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 3.5 AND 4.8
Versions
  • affected from 4.8.0 to 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 3.5 AND 4.8.1
Versions
  • affected from 4.8.1 to 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Versions
  • affected from 4.7.0 to 4.7.4144.0 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 4.8
Versions
  • affected from 4.8.0 to 4.8.4805.0 (excl.)
Vendor Microsoft
Product Microsoft .NET Framework 4.8.1
Versions
  • affected from 4.8.0.0 to 4.8.9344.0 (excl.)
Vendor Microsoft
Product Microsoft Visual Studio 2022 version 17.14
Versions
  • affected from 17.14.0 to 17.14.38 (excl.)
Vendor Microsoft
Product Microsoft Visual Studio 2026 version 18.8
Versions
  • affected from 18.0 to 18.8.3 (excl.)

References

Problem Types