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VulnerabilityPublished Updated

CVE-2025-38032: Linux kernel · mr: consolidate the ipmr_can_free_table() checks.

Source GCVE Database

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 13 Nov 2026, 18:51 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Jun 2025

  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 13 Nov 2026.

What to do

AI-suggested

The vulnerability has been resolved by consolidating the ipmr_can_free_table() sanity checks into a single helper function. No explicit patch links or fixed versions are provided in the data. Users should apply the latest Linux kernel updates that include this fix once available. Until then, monitoring vendor advisories for official patches is recommended. There is no indication that the issue is exploitable in the wild or that additional mitigations are required.

Description

CVE-2025-38032 is a medium severity vulnerability in the Linux kernel related to the ipmr_can_free_table() checks in the multicast routing (mr) code. The flaw involves a kernel warning and potential crash (splat) during the ipmr net namespace cleanup path when CONFIG_IP_MROUTE_MULTIPLE_TABLES is disabled. The issue stems from a loose sanity check that was consolidated into a single helper function to improve robustness. This vulnerability affects kernel stability but does not impact confidentiality or integrity.

References

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