Use After Free in Linux

CVE-2022-49362

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix potential use-after-free in nfsd_file_put() nfsd_file_put_noref() can free @nf, so don't dereference @nf immediately upon return from nfsd_file_put_noref().

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-49362: held from 0.006 to 0.007.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000

Affected products

  • Linux — versions 9862064ca81f9b9da8ebe26c86cf2b10c293ba1a, a98e5b3d958ac697aafb3d077eb2cca4a731b7ee, 999397926ab3f78c7d1235cc4ca6e3c89d2769bf
  • Linux Kernel — versions 5.19

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-49362?
CVE-2022-49362 is a critical-severity vulnerability in Linux, classified under Use After Free. CVSS score: 9.8/10. Published 2025-02-26.
How severe is CVE-2022-49362?
Critical severity. CVSS v3 base score is 9.8 out of 10.