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Vulnerability record · CVE-2021-28660 · published 17 March 2021

CVE-2021-28660: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

rtw_wx_set_scan in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the Linux kernel through 5.11.6 allows writing beyond the end of the ->ssid[] array. NOTE: from the perspective of kernel.org releases, CVE IDs are not normally used for drivers/staging/* (unfinished work); however, system integrators may have situations in which a drivers/staging issue is relevant to their own customer base.

8.8 CVSS 3.1 High EPSS 1.3% · top 30.4% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 8.3
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
12Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

rtw_wx_set_scan in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the Linux kernel through 5.11.6 allows writing beyond the end of the ->ssid[] array. NOTE: from the perspective of kernel.org releases, CVE IDs are not normally used for drivers/staging/* (unfinished work); however, system integrators may have situations in which a drivers/staging issue is relevant to their own customer base.

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

Affected products

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

References

LinkTags
http://www.openwall.com/lists/oss-security/2022/11/18/1 Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/11/21/2 Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=74b6b20df8cfe90ada777d621b54c32e69e27cd7 Mailing ListPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJPVQZPY3DHPV5I3IVNMSMO
https://security.netapp.com/advisory/ntap-20210507-0008/ Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/11/18/1 Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/11/21/2 Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=74b6b20df8cfe90ada777d621b54c32e69e27cd7 Mailing ListPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJPVQZPY3DHPV5I3IVNMSMO
https://security.netapp.com/advisory/ntap-20210507-0008/ Third Party Advisory

Track CVE-2021-28660 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2021-28660), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.