CVE-2022-49356

Linux Kernel vulnerability

9.8 CRITICALEPSS 0.68%

Published26 Feb 2025

Description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Trap RDMA segment overflows Prevent svc_rdma_build_writes() from walking off the end of a Write chunk's segment array. Caught with KASAN. The test that this fix replaces is invalid, and might have been left over from an earlier prototype of the PCL work.

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≥ 5.11 < 5.15.47 · ≥ 5.16 < 5.17.15 · ≥ 5.18 < 5.18.4 · 5.19

Remediation

Fixed in

Linux Kernel≥ 5.15.47

Patch & vendor advisories

References

Frequently asked

Is CVE-2022-49356 being actively exploited?

CVE-2022-49356 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.68%.

How severe is CVE-2022-49356?

CVE-2022-49356 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.68% probability of exploitation.

Which products are affected by CVE-2022-49356?

Affected products include Linux Kernel.

How do I fix CVE-2022-49356?

Upgrade affected software to a fixed version, for example Linux Kernel 5.15.47 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-49356 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.