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CVE-2022-49362

Linux Kernel use-after-free

9.8 CRITICALEPSS 0.66%
  1. Published26 Feb 2025

Description

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().

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux Kernel≥ 5.18 < 5.18.4 · 5.19

Remediation

Fixed in
Linux Kernel≥ 5.18.4

References

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Frequently asked

Is CVE-2022-49362 being actively exploited?

CVE-2022-49362 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.66%.

How severe is CVE-2022-49362?

CVE-2022-49362 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.66% probability of exploitation.

Which products are affected by CVE-2022-49362?

Affected products include Linux Kernel.

How do I fix CVE-2022-49362?

Upgrade affected software to a fixed version, for example Linux Kernel 5.18.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-49362 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.