CVE-2019-16746

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 13%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

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 v3
9.8
EG Score
9.8(medium)
EG Risk
—
EPSS
95.8%
KEV
Not listed

Published

September 24, 2019

Last Modified

November 21, 2024

Advisory Details (6)

Auto-updated May 27, 2026
Patch available.
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20191031-0005/
generic

Bugtraq: [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01)

https://seclists.org/bugtraq/2019/Nov/11
generic

'[PATCH 1/2] nl80211: validate beacon head' - MARC

https://marc.info/?l=linux-wireless&m=156901391225058&w=2
generic

[SECURITY] Fedora 30 Update: kernel-tools-5.3.6-200.fc30 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2JNO46TVL7/
generic Patch Available

[SECURITY] [DLA 2114-1] linux-4.9 security update

https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
generic Patch Available

[SECURITY] [DLA 2068-1] linux security update

https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html

Vendor Advisories for CVE-2019-16746(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-lowlatency (5.3.0.22.26) @ eoan2026-05-27ubuntu
ubuntulinux-image-virtual-lts-xenial (4.4.0.168.176) @ xenial2026-05-27ubuntu
ubuntulinux-image-virtual (5.0.0.37.39) @ disco2026-05-27ubuntu
ubuntulinux-image-virtual-hwe-16.04-edge (4.15.0.72.92) @ xenial2026-05-27ubuntu
redhatkernel-0:4.18.0-193.el82020-04-28redhat
redhatkernel-rt-0:3.10.0-1127.rt56.1093.el72020-03-31redhat
redhatkernel-0:3.10.0-1127.el72020-03-31redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 22:21 UTCEG score recompute
  2. 2026-07-22 14:05 UTCEPSS rescore
  3. 2026-07-21 15:22 UTCEPSS rescore
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  5. 2026-07-20 17:04 UTCEPSS rescore
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  7. 2026-07-20 05:40 UTCOSV refresh
  8. 2026-07-19 14:28 UTCEPSS rescore
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  1. 2026-07-06 16:25 UTCEPSS rescore
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  3. 2026-07-05 02:27 UTCEPSS rescore
  4. 2026-07-04 06:28 UTCEPSS rescore
  5. 2026-07-02 22:05 UTCOSV refresh
  6. 2026-07-01 15:03 UTCEPSS rescore
  7. 2026-07-01 15:03 UTCEPSS rescore
  8. 2026-06-30 23:20 UTCEPSS rescore
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  28. 2026-06-14 23:15 UTCEPSS rescore
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  30. 2026-06-14 18:13 UTCOSV refresh
  31. 2026-06-13 22:58 UTCEPSS rescore
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  47. 2026-06-02 20:11 UTCEPSS rescore
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  49. 2026-06-01 13:50 UTCEPSS rescore
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  51. 2026-05-31 22:29 UTCEPSS rescore
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  55. 2026-05-29 13:42 UTCEPSS rescore
  56. 2026-05-28 13:43 UTCEPSS rescore
  57. 2026-05-27 14:01 UTCEG score recompute
  58. 2026-05-27 14:01 UTCVendor advisory
  59. 2026-05-27 14:01 UTCGHSA enrichment
  60. 2026-05-27 13:38 UTCEPSS rescore
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  63. 2026-05-26 07:17 UTCEPSS rescore
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  65. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2019-16746?
CVE-2019-16746 is a critical vulnerability published on September 24, 2019. 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.
When was CVE-2019-16746 disclosed?
CVE-2019-16746 was first published in the National Vulnerability Database on September 24, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-16746 actively exploited?
CVE-2019-16746 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-16746?
CVE-2019-16746 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-16746?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-16746, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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