Red Hat Security Advisory: .NET 6.0 security update
Affects Red HatSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 06:26 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 2.7% chance of exploitation in 30 days – higher than 85% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 27 Mar 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 2026-10-26.
What to do
AI-suggested
Red Hat has released updated packages for .NET SDK 6.0.127 and .NET Runtime 6.0.27 that fix this vulnerability. Users should apply these official updates as soon as possible. Detailed update instructions are available in the Red Hat advisory and associated article (https://access.redhat.com/articles/11258). No additional mitigations are specified or required beyond applying the official patches.
Description
.NET 6.0 contains a denial of service vulnerability in the X509Certificate2 component (CVE-2024-21404). Red Hat has released updated versions of the .NET SDK (6.0.127) and .NET Runtime (6.0.27) to address this issue. The vulnerability is rated as having an important security impact by Red Hat. This affects Red Hat Enterprise Linux 8.8 and related products. No CVSS score is provided in the advisory.