CVE-2026-47300

HIGH

MEDIUM Priority: 0.07 BB Relevance: 68/100

Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Network Low Complexity No Interaction Conf. Impact Integ. Impact

AV: Network

AC: Low

PR: Low

UI: None

S: Unchanged

C: High

I: High

A: High

Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

CWE-303

Vendor	Product	Version
Microsoft	.NET 10.0 runtime	10.0.0 < 10.0.10
Microsoft	.NET 10.0 runtime	10.0.0 < 10.0.10
Microsoft	.NET 8.0 runtime	8.0.0 < 8.0.29
Microsoft	.NET 8.0 runtime	8.0.0 < 8.0.29
Microsoft	.NET 9.0 runtime	9.0.0 < 9.0.18
Microsoft	.NET 9.0 runtime	9.0.0 < 9.0.18
Microsoft	Microsoft Visual Studio 2022 version 17.12	17.12.0 < 17.12.22
Microsoft	Microsoft Visual Studio 2022 version 17.12	17.12.0 < 17.12.22
Microsoft	Microsoft Visual Studio 2022 version 17.14	17.14.0 < 17.14.36
Microsoft	Microsoft Visual Studio 2022 version 17.14	17.14.0 < 17.14.36
Microsoft	Microsoft Visual Studio 2026 version 18.7	18.0 < 18.7.4
Microsoft	Microsoft Visual Studio 2026 version 18.7	18.0 < 18.7.4
microsoft	.net	8.0.0 – 8.0.29
microsoft	.net	9.0.0 – 9.0.18
microsoft	.net	10.0.0 – 10.0.6
microsoft	.net	8.0.0 – 8.0.29
microsoft	.net	9.0.0 – 9.0.18
microsoft	.net	10.0.0 – 10.0.6
microsoft	visual_studio_2022	17.12.0 – 17.12.22
microsoft	visual_studio_2022	17.14.0 – 17.14.36
microsoft	visual_studio_2022	17.12.0 – 17.12.22
microsoft	visual_studio_2022	17.14.0 – 17.14.36
microsoft	visual_studio_2026	18.7.0 – 18.7.4
microsoft	visual_studio_2026	18.7.0 – 18.7.4

Patch Vendor Advisory

68 / 100

✓ Network accessible
✓ Low complexity
✓ No user interaction

8.8 / 10.0 v3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

0.78%

Raw Score 0.007780

Percentile 55.8%

Date 2026-10-29

2026-10-29

0.00778

2026-10-28

0.00778

mitre ref →

nvd ref →