CVE-2019-16746
CRITICALCVSS 9.8/10EPSS 12.65%
Last modified
CVE-2019-16746 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 12.65% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.25, < 3.16.79 |
| Linux | Linux Kernel | >= 3.17, < 4.4.197 |
| Linux | Linux Kernel | >= 4.5, < 4.9.197 |
| Linux | Linux Kernel | >= 4.10, < 4.14.149 |
| Linux | Linux Kernel | >= 4.15, < 4.19.79 |
| Linux | Linux Kernel | >= 4.20, < 5.3.6 |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 19.04 |
| Canonical | Ubuntu Linux | 19.10 |
| Fedoraproject | Fedora | 30 |
| Opensuse | Leap | 15.1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlThird Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing List, Third Party Advisory
- https://marc.info/?l=linux-wireless&m=156901391225058&w=2Mailing List, Patch, Third Party Advisory
- https://seclists.org/bugtraq/2019/Nov/11Mailing List, Third 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.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlThird Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing List, Third Party Advisory
- https://marc.info/?l=linux-wireless&m=156901391225058&w=2Mailing List, Patch, Third Party Advisory
- https://seclists.org/bugtraq/2019/Nov/11Mailing List, Third 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.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-16746?
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.
How severe is CVE-2019-16746?
CVE-2019-16746 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 12.65% probability of exploitation in the next 30 days.
How do I fix CVE-2019-16746?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-16746?
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Scan your code nowSource: NVD / NIST