PT-2026-58682 · Microsoft · Asp.Net Core

CVE-2026-47300 · Published 2026-07-14 · Updated 2026-07-15

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions ASP.NET Core (affected versions not specified)

Description An incorrect implementation of the authentication algorithm allows an authorized attacker to elevate privileges over a network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-303

Related Identifiers

CVE-2026-47300

USN-8553-1

Affected Products

Asp.Net Core

References · 21

• https://ubuntu.com/security/CVE-2026-50525 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-50659 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-47300 · Security Note
• https://ubuntu.com/security/CVE-2026-57108 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-50526 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-47303 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-50524 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47300 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-50528 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-50648 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-50527 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-47300 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-47300 · Security Note
• https://ubuntu.com/security/CVE-2026-47304 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-47302 · Vendor Advisory