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CVE-2019-16746

37
FAUCET Score

CVE-2019-16746 is a critical buffer overflow vulnerability in the Linux kernel's wireless networking component (net/wireless/nl80211.c) affecting versions through 5.2.17, including distributions like Canonical, Debian, Fedora, and openSUSE. This flaw, rated 9.8 CVSS (Critical), allows unauthenticated attackers to remotely execute arbitrary code or cause a denial of service due to insufficient length checks on variable elements in a beacon head. Despite its severity and remote attack vector, there is no known public exploit code (Metasploit, Nuclei, ExploitDB), nor is it listed in CISA's KEV catalog. Furthermore, there is minimal community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.25, < 3.16.79CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 4.4.197CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.5, < 4.9.197CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.149CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.79CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
12.65%
Probability of exploitation in next 30 days
EPSS Percentile
95.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1265 is in the 92nd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1127.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-193.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1127.rt56.1093.el7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2019-16746Moderate

kernel: buffer-overflow hardening in WiFi beacon validation code.

Sep 11, 2019

References

lists.opensuse.org / opensuse-security-announce/2020-03/msg00021.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-08/msg00009.html
Mailing ListThird Party Advisory
packetstormsecurity.com / files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
Third Party AdvisoryVDB Entry
lists.debian.org / debian-lts-announce/2020/01/msg00013.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/03/msg00001.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2JNO46TVL7
marc.info
Mailing ListPatchThird Party Advisory
seclists.org / bugtraq/2019/Nov/11
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20191031-0005
Third Party Advisory
usn.ubuntu.com / 4183-1
Third Party Advisory
usn.ubuntu.com / 4186-1
Third Party Advisory
usn.ubuntu.com / 4209-1
Third Party Advisory
usn.ubuntu.com / 4210-1
Third Party Advisory
oracle.com / security-alerts/cpuApr2021.html
Third Party Advisory