Red Hat Security Advisory: kernel security update
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 2 Nov 2026, 04:58 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 9 Oct 2026
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 1 Nov 2026.
What to do
AI-suggested
Red Hat has released an updated kernel package that fixes this vulnerability. Users should apply the kernel update as provided in Red Hat Enterprise Linux 9.4 and reboot their systems to ensure the fix takes effect. Red Hat strongly advises against delaying this update to avoid exposure.
Description
A security update for the Linux kernel in Red Hat Enterprise Linux 9.4 addresses a potential use-after-free vulnerability in UDP tunnel segmentation (CVE-2026-74705). This flaw could impact system security due to the kernel's critical role. The update requires a system reboot to take effect and is rated as important by Red Hat Product Security.