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CVE-2025-40248VulnerabilityPublished Updated

Red Hat Security Advisory: kpatch-patch-5_14_0-284_104_1, kpatch-patch-5_14_0-284_117_1

Affects Red HatSource GCVE Database

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Not known to be exploited.

Data as of 5 Nov 2026, 19:19 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 provided official live patch modules to remediate this vulnerability. Users should apply the relevant kpatch updates for kernel-5.14.0-284.92.1.el9_2 and reboot their systems to ensure the patch takes effect. Detailed update instructions are available from Red Hat's advisory. No additional mitigation steps are indicated.

Description

A vulnerability identified as CVE-2025-40248 affects the Linux kernel's vsock component in Red Hat Enterprise Linux 9.2. This vulnerability may lead to memory corruption. Red Hat has issued a security advisory providing live patch modules for kernel version 5.14.0-284.92.1.el9_2 to address this issue. The update requires a system reboot to take effect.

References

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