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Vulnerability record · CVE-2019-16746 · published 24 September 2019

CVE-2019-16746: Linux kernel classic buffer overflow vulnerability

Linux · Linux Kernel

An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.

9.8 CVSS 3.1 Critical EPSS 13% · top 3.9% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score, v2 7.5
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
28References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.

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

Affected products

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

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html Mailing ListThird Party Advisory
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2
https://marc.info/?l=linux-wireless&m=156901391225058&w=2 Mailing ListPatchThird Party Advisory
https://seclists.org/bugtraq/2019/Nov/11 Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20191031-0005/ Third Party Advisory
https://usn.ubuntu.com/4183-1/ Third Party Advisory
https://usn.ubuntu.com/4186-1/ Third Party Advisory
https://usn.ubuntu.com/4209-1/ Third Party Advisory
https://usn.ubuntu.com/4210-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html Mailing ListThird Party Advisory
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2
https://marc.info/?l=linux-wireless&m=156901391225058&w=2 Mailing ListPatchThird Party Advisory
https://seclists.org/bugtraq/2019/Nov/11 Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20191031-0005/ Third Party Advisory
https://usn.ubuntu.com/4183-1/ Third Party Advisory
https://usn.ubuntu.com/4186-1/ Third Party Advisory
https://usn.ubuntu.com/4209-1/ Third Party Advisory
https://usn.ubuntu.com/4210-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-16746), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.