SB20260619135 - Fedora 44 update for dotnet9.0

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Main Vulnerability Database SB20260619135

SB20260619135 - Fedora 44 update for dotnet9.0

Published: June 19, 2026

Security Bulletin ID SB20260619135
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Improper Authorization (CVE-ID: CVE-2026-45490)

CWE-ID: CWE-285 - Improper Authorization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to bypass authorization checks.

The vulnerability exists due to insufficient authorization controls in NET SDK. A local user can gain elevated privileges on the target system.


2) Link following (CVE-ID: CVE-2026-45491)

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to compromise the system.

The vulnerability exists due to an insecure link following issue in .NET. A local attacker can perform tampering on the target system.


3) Resource exhaustion (CVE-ID: CVE-2026-45591)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in ASP.NET Core. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References