Red Hat Security Advisory: .NET 8.0 security update
Affects Red Hat .NET 8.0Source GCVE Database
Not known to be exploited.
Data as of 5 Nov 2026, 18:37 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 14 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
AI-suggested
Red Hat has released fixed versions of the .NET SDK (8.0.116) and .NET Runtime (8.0.16) that address this vulnerability. Users running affected Red Hat Enterprise Linux 9.4 Extended Update Support versions should apply these updates promptly. Detailed update instructions are available in the Red Hat advisory and associated article (https://access.redhat.com/articles/11258). No additional mitigation steps are indicated beyond applying the official patches.
Description
.NET 8.0 contains a security vulnerability identified as CVE-2025-26646, which is a spoofing vulnerability affecting .NET and Visual Studio components. Red Hat has released updated versions, .NET SDK 8.0.116 and .NET Runtime 8.0.16, to address this issue. The vulnerability is rated as having an important security impact by Red Hat Product Security. The advisory applies to Red Hat Enterprise Linux 9.4 Extended Update Support and related variants. Users are advised to apply the updates provided by Red Hat to remediate this vulnerability.