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CVE-2022-49280

Linux Kernel integer overflow

9.8 CRITICALEPSS 0.69%
  1. Published26 Feb 2025

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: prevent underflow in nfssvc_decode_writeargs() Smatch complains: fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs() warn: no lower bound on 'args->len' Change the type to unsigned to prevent this issue.

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≥ 4.10 < 4.14.276 · ≥ 4.15 < 4.19.238 · ≥ 4.20 < 5.4.189 · ≥ 5.11 < 5.15.33

Remediation

Fixed in
Linux Kernel≥ 4.14.276

References

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Frequently asked

Is CVE-2022-49280 being actively exploited?

CVE-2022-49280 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.69%.

How severe is CVE-2022-49280?

CVE-2022-49280 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.69% probability of exploitation.

Which products are affected by CVE-2022-49280?

Affected products include Linux Kernel.

How do I fix CVE-2022-49280?

Upgrade affected software to a fixed version, for example Linux Kernel 4.14.276 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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