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Vulnerability record · CVE-2021-38201 · published 8 August 2021

CVE-2021-38201: Linux kernel memory buffer overflow vulnerability

Linux · Linux Kernel

net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.

7.5 CVSS 3.1 High EPSS 3.4% · top 11.7% CWE-119 · Memory buffer overflow
7.5CVSS 3.1 base score, v2 5.0
3.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Mailing ListPatchVendor Advisory
https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0010/ Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Mailing ListPatchVendor Advisory
https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0010/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-38201), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.