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Vulnerability record · CVE-2021-42252 · published 11 October 2021

CVE-2021-42252: Netapp cloud backup vulnerability

NNetapp · Cloud Backup

An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.

7.8 CVSS 3.1 High EPSS 0.37% · top 71.7%
7.8CVSS 3.1 base score, v2 4.6
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
11Affected product versions listed by NVD
6References
5 Aug 2026Last modified by NVD

Description

An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.

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

Affected products

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

References

LinkTags
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6 Release NotesVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96 PatchVendor Advisory
https://security.netapp.com/advisory/ntap-20211112-0006/ Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6 Release NotesVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96 PatchVendor Advisory
https://security.netapp.com/advisory/ntap-20211112-0006/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-42252), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.