CVE-2022-50235

Linux Kernel buffer overflow

9.8 CRITICALEPSS 0.43%

Published15 Sept 2025

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: Protect against send buffer overflow in NFSv2 READDIR Restore the previous limit on the @count argument to prevent a buffer overflow attack.

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≥ 5.15.12 < 5.15.75 · ≥ 5.16.1 < 5.19.17 · ≥ 6.0 < 6.0.3 · 5.16

Remediation

Fixed in

Linux Kernel≥ 5.15.75

Patch & vendor advisories

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2022-50235 being actively exploited?

CVE-2022-50235 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.43%.

How severe is CVE-2022-50235?

CVE-2022-50235 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2022-50235?

Affected products include Linux Kernel.

How do I fix CVE-2022-50235?

Upgrade affected software to a fixed version, for example Linux Kernel 5.15.75 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-50235 against the real software inventory on every managed device, as each hourly inventory arrives. 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.