Is CVE-2025-40216 in the CISA KEV catalog?

No. CVE-2025-40216 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2025-40216?

CVE-2025-40216 has an EPSS score of 0.16% (6th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-40216?

Upgrade linux on debian 13 to 6.12.37-1 or later.

CVE & CISA-KEV Catalog

CVE-2025-40216

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/rsrc: don't rely on user vaddr alignment There is no guaranteed alignment for user pointers, however the calculation of an offset of the first page into a folio after coalescing uses some weird bit mask logic, get rid of it.

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.37-1CVE-2025-40216

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.16%probability of exploitation in 30 days

6thpercentile

Low risk: more likely to be exploited than 6% of all known CVEs.

References

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-04.