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CVE-2025-37861VulnerabilityPublished Updated

Red Hat Security Advisory: kernel security update

Affects Linux kernelSource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited · fixed in Red Hat package updates : update Linux kernel when convenient.

Data as of 30 Oct 2026, 04:47 UTC

Severity
Medium

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

Patch
Available – fixed in 9.6

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Feb 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 29 Oct 2026.

What to do

AI-suggested

Red Hat has released updated kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support that fix these vulnerabilities. Users should apply the available kernel updates promptly and reboot their systems to ensure the fixes take effect. Detailed update instructions are available in the Red Hat advisory. No additional mitigation steps are indicated.

Description

This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support. The issues include a synchronous access flaw in the SCSI mpi3mr driver (CVE-2025-37861), a use-after-free vulnerability in the io_uring subsystem that could lead to local privilege escalation, information disclosure, or denial of service (CVE-2025-38106), and a memory corruption vulnerability in Squashfs due to incorrect block size calculation (CVE-2025-38415). These vulnerabilities have been rated with moderate severity by Red Hat. The update requires a system reboot to take effect.

References

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